JP4928525B2 - Receiver - Google Patents

Description

  The present invention relates to a receiving apparatus that receives information about a reception abnormality detected when a reception abnormality is detected in a receiving apparatus that receives the broadcast to a failure information collecting apparatus that collects reception failure information of the broadcast.

  In Japan, digital broadcasting is based on BSDB (Broadcasting Satellite) digital broadcasting based on ISDB-S (Integrated Services Digital Broadcasting for Satellite) in 2000, and ISDB-T in 2003. Terrestrial digital broadcasting by the (Integrated Services Digital Broadcasting for Terrestrial) system has been started, and the household penetration rate of digital terrestrial broadcasting compatible receivers as of February 2008 is 43.7% (General Affairs) And see “Results of the penetration survey on digital terrestrial television broadcasting”) and digital broadcasting is spreading.

  With the end of 2011 terrestrial and BS analog broadcasting, the transition from analog to digital television broadcasting in Japan is completed. Furthermore, with the transition, not only a real-time type but also a storage type broadcasting system is being studied as a service using a vacant analog broadcast frequency band. For terrestrial broadcasting, server-type broadcasting for mobile terminals using the ISDB-Tmm (Integrated Services Digital Broadcasting-Terrestrial for mobile multimedia) system is being considered, and for satellite broadcasting, download services using advanced BS digital broadcasting are being considered. Has been.

  Thus, although digitalization of broadcasting is progressing, there is a possibility that a failure occurrence probability of the receiving device may increase due to sophistication and complexity of the receiving device. In addition, with the increase in the occurrence of abnormal weather, there is a possibility that the frequency of reception interference increases due to rain attenuation caused by torrential rain. And during the time when the failure occurs, the broadcast service cannot be enjoyed. Also, in digital broadcasting, if the reception condition deteriorates due to the reception characteristics, phenomena such as video block noise and audio mute occur in the received broadcast program, and if a certain threshold is exceeded, the broadcast program is completely viewed. It becomes a situation that can not be.

  In order to provide broadcast services to viewers in a stable manner, broadcasters have developed various technologies and improved operations, and are taking measures against broadcast reception failures. Hereinafter, reception failures and countermeasures for typical digital broadcasting will be described.

(1) Classification of reception failure (1-1) Failure due to improper installation of antenna or receiving device Antenna installation direction and location, cable deterioration from antenna to receiving device, antenna or receiving device connector failure, reception This is a failure caused by the installation method in each household where the receiving device is installed, such as a device failure.

(1-2) Failure of Broadcasting Equipment In terrestrial digital broadcasting, there may be equipment troubles in transmission facilities of broadcasting stations and transmission facilities of basic stations and relay stations. In addition, in BS / CS (Communication Satellite) digital broadcasting, there may be a failure in the transmission facility of the broadcasting station or a facility of the broadcasting satellite, or a failure due to rain attenuation during uplink from the broadcasting station to the broadcasting satellite. Furthermore, in a household receiving a broadcast using CATV (Cable TeleVision, cable TV), there may be a facility failure of the CATV operator.

(1-3) Obstacles due to broadcast waves In digital terrestrial broadcasting, as radio wave obstructions, obstructions caused by multipath due to reflection and diffraction of broadcast waves, level reduction due to fading of broadcast waves, and the same channel transmitted from multiple relay stations Typical examples are broadcast wave interference and shielding by buildings. Also, in BS / CS digital broadcasting, a failure due to rain attenuation may occur due to weather conditions in the reception area.

(2) Countermeasures (2-1) Inquiries to broadcasters Call centers and websites have been established in broadcasting companies, public affairs agencies such as the Ministry of Internal Affairs and Communications, local governments, and receiver manufacturers as a contact point for inquiries regarding reception problems. Has been. When the viewer can no longer enjoy the broadcasting service, it is possible to know the cause of the reception failure and how to solve it through such a window.

(2-2) Operation of broadcasters In order to provide viewers with a stable broadcast service, broadcasters perform the following operations in order to quickly find and notify faults.

(2-2-1) Discovery of Failures Broadcasting companies can quickly grasp reception failures, systems that notify operators of commissioned supervisors, transmission facilities and transmission facilities located in each region, as described above. The information of the inquiry by (2-1) is utilized comprehensively. Then, the cause of the failure is identified based on the information. In addition, maintenance and maintenance of the equipment will be carried out systematically in order to suppress problems in the transmission equipment and transmission equipment.

(2-2-2) Failure Notification When a broadcaster detects the occurrence of a failure, it notifies the viewer who enjoys the broadcast service about the occurrence status and cause of the failure. The failures caused by (1-1) are dealt with individually. However, in the failures caused by (1-2) and (1-3), the area where the failure occurs may be wide. Because it can be considered, a character supermarket is displayed on the video of the broadcast program, or information is posted on the homepage of the broadcaster, so that notification is widely made.

(2-3) Failure Suppression Technology as a Broadcasting System Non-Patent Document 1 defines a hierarchical modulation system in BS digital broadcasting, and in a receiving device by simultaneously transmitting broadcast waves modulated in two layers. A technique is disclosed that enables viewing of a broadcast program with low quality up to a certain stage even during rain attenuation, while normally viewing a high-quality broadcast program.

  In Non-Patent Document 2, in the next-generation BS digital broadcasting, broadcasting is performed by increasing the radiated power to the rainfall area using the phased array antenna mounted on the broadcasting satellite based on the rainfall data of radar AMeDAS of the Japan Meteorological Agency. A technology that enables a provider to flexibly compensate for a rain region is disclosed.

  Non-Patent Document 3 and Non-Patent Document 4 disclose an engineering service that realizes automatic software update of a receiving device using a digital broadcast wave, and it is possible to automatically correct a defect in the receiving device software. To do.

  Patent Document 1 discloses a technique for collecting information on reception failure from a viewer to a broadcaster, and accurately performing failure notification and cause identification.

  In Japan, the spread of the Internet is rapidly progressing, and the population penetration rate of the Internet at the end of 2007 is 69.0%, especially FTTH (Fiber To The Home) and xDSL (x Digital). The ratio of broadband line users (such as Subscriber Line and various digital subscriber lines) to the number of Internet users is 66.1% (see Ministry of Internal Affairs and Communications, “Results of a Survey on Trends in Communication Usage in 2007”). Communication using is becoming commonplace.

  In such a broadband environment, large-capacity content such as HD (High Definition) video can be distributed. Speaking of content distribution services such as video, the service was mainly for PCs, but in November 2007 ActVila launched a paid video distribution service for compatible receivers, and in June 2008 the establishment of IPTV Forum As represented by the above, a content distribution service (IPTV (Internet Protocol TeleVision) service) using communication for a digital broadcast receiver is also becoming popular.

  In such content distribution services, client-server type system construction is common, but content distribution companies, assuming large-scale services and the number of users, load on servers and networks due to concentration of access. In order to solve the increase problem, enormous costs are required for large-scale system construction and network infrastructure maintenance.

  As a solution to these problems, content distribution technology using a P2P (Peer-to-Peer) network has attracted attention (for example, “P2P textbook”, Impress Communications, Inc., 2008 1). See the month).

  In the world, for example, a telephone service using P2P technology, a service that performs streaming type or download type content distribution, and the like are performed. In Japan, some content distribution services for end users using P2P technology are also available. This P2P technology reduces the amount of information traffic from the server as much as possible and exchanges content between terminals, so it not only reduces the scale of system and network infrastructure construction, but also reduces server load and network load caused by congestion. It has the feature that it can be greatly reduced.

  P2P applications can be broadly classified into two models: “hybrid P2P” and “pure P2P”. The hybrid P2P has a center server that manages a logical network. Each node first connects to the center server and joins the logical network. The actual file transfer is performed between nodes without going through the center server. Since the hybrid P2P can authenticate nodes participating in the logical network, it is useful in terms of security, management, and billing. However, it has inherited the drawbacks of the conventional client-server type communication such that communication cannot be performed when the center server goes down.

Pure type P2P does not have a center server like hybrid type P2P. A logical network is composed only of individual nodes. Information of a certain node is relayed from node to node, and information is shared throughout the logical network. The pure P2P does not require a center server, and thus has a feature that can build a system that is resistant to failures, but has the disadvantage of being weak in security in that it is difficult to manage nodes.
"ARIB STD-B20 Satellite Digital Broadcasting Transmission System", ARIB Standard (Broadcasting Field) “Examination of shaping boost beam of phased array antenna on 21 GHz band satellite”, IEICE Technical Report, Vol.107, No.11 (20070413) pp.7-12 SAT2007-2 “ARIB TR-B15 BS / Broadband CS Digital Broadcasting Operation Regulations”, ARIB Technical Documents (Broadcasting Field) "ARIB TR-B14 Terrestrial Digital Television Broadcasting Operation Regulations", ARIB Technical Data (Broadcasting Field) JP 2002-111617 A (paragraph 0035 to paragraph 0037, FIGS. 1 and 2)

  Various reception failures occur in terrestrial digital broadcasting and BS / CS digital broadcasting. A reception failure in analog broadcasting may be, for example, that a broadcast program cannot be viewed with normal image quality due to a ghost failure, but can be viewed when the quality is deteriorated. However, a reception failure in digital broadcasting makes it impossible to view the broadcast program at all, and the viewer cannot enjoy the broadcast service at all. In consideration of such characteristics of digital broadcast reception failure, broadcasters are required to take quicker responses than analog broadcasts. Various technical developments have been made to meet such requirements, but there are the following problems.

  Broadcasters set up and respond to inquiries regarding the occurrence of reception problems, but in the case of widespread problems, there is a possibility that inquiries will be flooded and it will not be possible to fully respond to viewers. is there. There is also a mechanism for informing the broadcaster of the occurrence of a reception failure by using a contact by a consignment supervisor or a failure notification system for a transmission facility or a transmission facility. However, because the commissioned supervisors are not always present in every region, and the fault notification system cannot cope with all faults in the equipment, the reception faults can be detected quickly and reliably. There is no operational system that broadcasters can know.

  When a broadcaster grasps a reception failure that affects a wide range, it may notify the viewer by displaying a text superimpose on the video of the broadcast program, but the channel or media that displays the text supervision (digital terrestrial broadcasting) If a failure occurs in itself (such as BS broadcast), the message cannot be transmitted to the viewer. Furthermore, the superimpose may be displayed even for viewers in areas where no failure has occurred, which may be a hindrance to viewing of the broadcast program for viewers in such areas.

  Although the technique disclosed in Non-Patent Document 1 for suppressing a failure as a broadcasting system is a technique for presenting a broadcast program with low quality even in digital broadcasting, the cause of a reception failure cannot be specified.

  The technology disclosed in Non-Patent Document 2 is a technology that uses AMeDAS rainfall data to increase the radiated power of the broadcasting satellite to the rainfall area, but the resolution of AMeDAS is as low as about 17 km, and the measurement interval is Since it is 10 minutes, there is a problem that detailed regional information cannot be reflected in real time.

  In the reception failure notification system disclosed in Patent Document 1, when a reception failure is detected, the viewer transmits the reception failure information to the broadcaster's failure information collection device via the reception device. The broadcaster analyzes the cause of the failure and notifies the receiver of the viewer. However, it is time consuming because the viewer needs to input information, the viewer cannot grasp the existence of the failure and the cause of the failure without going through the broadcaster, and the system that collects the failure information is the client -Since it is a server type system, there has been a problem that the load on the broadcaster's server (failure information collection device) increases when a large number of failure notifications occur, such as when a failure occurs in a wide range.

  Therefore, the present invention provides a receiving device that automatically determines the cause of a reception failure when a reception failure occurs and notifies the failure information without imposing a heavy load on the failure information collection device. Objective.

In order to achieve the above-described object, the receiving device according to claim 1 is a receiving device including a communication unit that analyzes a cause of occurrence of a reception failure when a reception failure occurs in broadcasting, wherein reception abnormality occurs. a determining means, and a reception device list storage means, and communication information processing unit, a reception failure determining means, and further comprising configure.

  According to this configuration, the reception apparatus detects whether or not the broadcast reception state is abnormal by the reception abnormality determination unit, and includes reception abnormality detection information including information indicating whether or not the reception state is abnormal. However, when the reception abnormality determination means detects a reception abnormality before requesting reception abnormality detection information that is reception abnormality detection information of the receiving apparatus from another receiving apparatus, the communication information processing means Other reception abnormality detection information, which is reception abnormality detection information of the other reception device, is acquired from another reception device registered in the list stored in advance in the list storage unit via the communication unit. The acquired other reception abnormality detection information is analyzed by the reception failure determination means, and when the other reception abnormality detection information indicating that there is an abnormality exceeds a predetermined number, the own reception abnormality detection information and the acquired other reception abnormality Create reception failure information that aggregates detection information.

In addition, when the receiving device is requested by the other receiving device via the communication means, the receiving abnormality determining means creates the receiving abnormality detecting information by the receiving abnormality determining means, It transmits to the other receiving device of the request source via the communication means.
That is, the reception device collects reception abnormality detection information from other reception devices as a representative of the plurality of reception devices and analyzes the reception failure only when the reception abnormality is first detected among the plurality of reception devices. Go to create reception failure information. On the other hand, when there is a request for reception abnormality detection information from another receiving device, it is only necessary to transmit the own reception abnormality detection information to the other receiving device of the request source. There is no exchange.

  When a failure occurs in the receiving device, the receiving device recognizes the correction data with another receiving device based on the reception failure information by the communication information processing means, and transmits and receives the correction data. Recover from the failure. In the same way, the receiving device transmits and receives the supplemental data even if content that the receiving device should have received is lost due to rain attenuation or a broadcaster's equipment failure. Completion. As a result, the receiving devices are connected in a network configuration in which the receiving devices communicate with each other and communicate information on the reception state with each other. Therefore, the receiving devices can autonomously analyze reception failures, recover from failures, and supplement contents. .

  The receiving apparatus according to claim 2 is the receiving apparatus according to claim 1, only when the communication information processing means requests the receiving abnormality detection information from another receiving apparatus and acquires the other receiving abnormality detection information. The reception failure information created by the reception failure determination unit is transmitted to the failure information collection device that collects the reception failure information via the communication unit.

  According to such a configuration, the reception device collects reception abnormality detection information from other reception devices as a representative of the plurality of reception devices and receives the reception abnormality only when the reception abnormality is first detected among the plurality of reception devices. Failure analysis is performed to create reception failure information, and the created reception failure information is transmitted to the failure information collection device.

  As a result, only the representative of the plurality of receiving devices aggregates the information collected from the other receiving devices and transmits the information to the failure information collecting device that is a server. -While connected in a client-type network configuration, the failure information collection device can collect information from a wide range of reception devices with a small amount of communication.

  The receiving device according to claim 3 is the receiving device according to claim 1 or 2, wherein the receiving device list storage means is installed in a predetermined area including a position where the receiving device is installed. When a reception abnormality determination unit detects a reception abnormality before requesting reception abnormality detection information from another reception device, a communication information processing unit The other reception abnormality detection information is acquired from other receiving apparatuses registered in the position information dependent receiving apparatus list via the communication means.

  According to this configuration, when the reception apparatus detects a reception abnormality before the reception abnormality determination unit requests the reception abnormality detection information from another reception apparatus, the reception apparatus stores the reception apparatus list by the communication information processing unit. With reference to the position information dependent receiving device list stored in the means, other reception abnormality detection information is acquired from the other receiving devices registered in this list via the communication means.

  As a result, when the reception device detects a reception abnormality, the reception device autonomously determines whether or not the reception abnormality is caused by a region-dependent failure that occurs in common around the location where the reception device is located. Can be analyzed.

  The receiving apparatus according to claim 4 is the receiving apparatus according to claim 3, wherein the reception failure determination unit analyzes the acquired other reception abnormality detection information, and other reception abnormality detection information indicating that there is an abnormality is present. When the number exceeds a predetermined number, it creates reception failure information in which the own reception abnormality detection information and the acquired other reception abnormality detection information are aggregated, and the communication information processing means has received the reception failure information. A configuration is adopted in which reception failure information relating to a position reception device is transmitted to a failure information collection device that collects reception failure information via a communication unit.

  According to such a configuration, the reception device analyzes the acquired other reception abnormality detection information by the reception failure determination unit, and when the other reception abnormality detection information indicating that there is an abnormality exceeds a predetermined number, The reception failure information is created by collecting the own reception abnormality detection information and the acquired other reception abnormality detection information. Then, the communication information processing unit transmits the created reception failure information to the failure information collecting apparatus that collects the reception failure information regarding the channel in which the reception failure has occurred via the communication unit.

  As a result, only the representative of the plurality of receiving devices installed in the surrounding area collects information collected from other receiving devices and transmits it to the failure information collecting device that is a server. The information collection device can collect information from a wide range of reception devices quickly with a small amount of communication.

  The receiving device according to claim 5 is a receiving device according to any one of claims 1 to 4, wherein the receiving device list storage means is a list of other receiving devices of the same model as the receiving device. When the reception abnormality determining unit detects a reception abnormality before the reception abnormality detection information is requested from another reception device, the communication information processing unit is configured to receive the model-dependent reception device. The other reception abnormality detection information is acquired from the other receiving devices registered in the device list via the communication means.

  According to this configuration, when the reception apparatus detects a reception abnormality before the reception abnormality determination unit requests the reception abnormality detection information from another reception apparatus, the reception apparatus stores the reception apparatus list by the communication information processing unit. With reference to the model-dependent receiving device list stored in the means, other reception abnormality detection information is acquired from the other receiving devices registered in this list via the communication means.

  Thus, when the reception device detects a reception abnormality, the reception device can autonomously analyze whether the reception abnormality is caused by a model-dependent failure that occurs in common with the model of the reception device.

  The receiving device according to claim 6 is the receiving device according to claim 5, wherein the reception failure determination unit analyzes the acquired other reception abnormality detection information, and other reception abnormality detection information indicating that there is an abnormality is present. When the number exceeds a predetermined number, the reception failure information is created by aggregating the own reception abnormality detection information and the acquired other reception abnormality detection information, and the communication information processing means receives the reception failure information. A configuration is adopted in which reception failure information relating to a reception device of a model is collected via a communication means to a failure information collection device that collects reception failure information.

  According to such a configuration, the reception device analyzes the acquired other reception abnormality detection information by the reception failure determination unit, and when the other reception abnormality detection information indicating that there is an abnormality exceeds a predetermined number, The reception failure information is created by collecting the own reception abnormality detection information and the acquired other reception abnormality detection information. Then, the communication information processing unit transmits the created reception failure information to the failure information collection device that collects the reception failure information related to the receiving device of the model in which the reception failure has occurred via the communication unit.

  As a result, only the representative of the plurality of receivers of the same model aggregates the information collected from the other receivers and transmits it to the fault information collector that is a server. It is possible to collect information from a receiving device of a specific model in which a failure has occurred quickly with a small amount of communication.

  The receiving device according to claim 7 is the receiving device according to any one of claims 1 to 6, wherein the communication information processing means detects an abnormality in the reception state by the reception abnormality determining means. Based on the other reception abnormality detection information, it is configured to acquire data for failure recovery that is held by another receiving apparatus that is receiving normally.

  According to this configuration, the receiving device can transmit and receive data for failure recovery between the receiving devices by the communication information processing means. As a result, it becomes possible to perform fault recovery autonomously by a plurality of receiving apparatuses.

  The receiving device according to claim 8 is the receiving device according to claim 7, wherein the communication information processing means collects information on reception failure information from the failure information collection device, and information on other reception devices in which no failure has occurred. And data for failure recovery from the other receiving apparatus.

  According to such a configuration, the receiving device acquires the information for failure recovery from the failure information collecting device by using the communication information processing means to acquire information on the other receiving device in which no failure has occurred. Get from. As a result, for example, it is possible to recover from a fault occurring locally. For example, it occurs depending on the area where the receiving device is installed, such as recovery of a failure that depends on the model of the receiving device, such as software failure of the receiving device, attenuation of rain, equipment failure of the broadcaster, etc. It is possible to complement the contents that should have been received at the time of failure.

  In addition, only representatives of a plurality of receiving devices analyze the information collected from other receiving devices to analyze the occurrence of the failure, and obtain the reception failure information that is the analysis result and other reception abnormality detection information. Since the data is transmitted to other receiving apparatuses, the failure information can be shared between the plurality of receiving apparatuses with a small amount of communication.

  The receiving device according to claim 9 is the receiving device according to any one of claims 1 to 8, and includes a presentation unit.

  According to such a configuration, when the reception device detects a reception abnormality or analyzes a reception failure, the presentation means indicates that the reception abnormality has been detected or the analysis content of the reception failure is visually or audibly or audiovisually. Replay and present to viewers.

  Thus, when an abnormality or failure occurs, the receiving device can autonomously detect the abnormality, or analyze the failure and inform the viewer of the content.

According to the first and second aspects of the invention, only the receiving device that aggregates the information notifies the failure information collecting device that is the server of the failure information, so that the load on access to the server can be suppressed. it can.
Also, not only broadcast reception abnormalities, but also when an abnormality occurs, it is an individual failure of the receiving device such as a mistake in the installation method of the receiving device or a failure of the receiving device alone, for example, a facility failure of the broadcaster It is possible to autonomously grasp the cause of a wide range of problems such as rain attenuation, reception device software defects, and the like. As a result, in the case of an individual failure of the receiving device, it is possible to suppress inquiries to broadcasters and the like.
In addition, the measurement of the broadcast wave reception level at the receiving device is generally inferior in accuracy compared to the measurement using a dedicated measuring device, but analysis is performed based on information from a plurality of receiving devices. The reliability of the analyzed failure information can be ensured.
Further, the system is composed of a plurality of receiving devices and a failure information collecting device as a server. As a system, the client-server network configuration is adopted, and information is exchanged between the receiving devices to perform a failure analysis. Operates so that the receiving devices communicate with each other. For this reason, even when a reception failure that affects a wide range occurs, for example, even if a failure occurs in a failure information collection device of a broadcaster or a receiving device manufacturer, the receiving device alone analyzes and grasps the failure. be able to.

  According to the third and fourth aspects of the present invention, in the case where the abnormality that has occurred is not an individual failure of the receiving apparatus but a wide-range failure, the failure occurrence area can be specified. It is possible to estimate whether there is equipment failure or rain attenuation.

  According to the inventions described in claims 5 and 6, since it is possible to determine whether or not the receiving apparatus is autonomously dependent on the model, for example, inquiries to the receiving apparatus manufacturer appropriately and quickly, etc. You can take action against the obstacles.

  According to the seventh and eighth aspects of the present invention, the failure can be recovered autonomously between the receiving devices, and the recovery work for the failure of the broadcaster or the receiving device manufacturer can be reduced.

  According to the invention described in claim 9, since the detected abnormality and the analyzed failure content are presented to the viewer, the viewer can quickly know the cause of the reception abnormality, and the viewer can deal with it. Can be taken.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
First, an example of a reception failure analysis system S in which a reception device according to the present invention is used will be described with reference to FIG. Here, FIG. 1 is a block diagram showing the configuration of the reception failure analysis system.

The reception failure analysis system S shown in FIG. 1 collects a plurality of reception devices 1, 1,... Arranged in a broadcast transmission area and failure information related to broadcasts transmitted from the reception devices 1, 1,. a fault information collection apparatus X ₁ broadcasters 2 is operated in order, a broadcasting program for transmitting via a transmission facility to the broadcaster 2 is operated, the backbone station transmitting equipment 3 for transmitting the terrestrial digital broadcasting, as well A failure related to the relay station transmission facility 4 that transmits by terrestrial digital broadcasting, the broadcasting satellite 5 that also transmits by BS / 110 degree CS digital broadcasting, and the receiving devices 1, 1,. a fault information collection apparatus X ₂ by the receiving device manufacturer 6 to collect information to operate, and a. The receiving apparatus 1, 1, ..., fault information collection apparatus X ₁ and fault information collection device X ₂ are communicatively connected to each other through the Internet 7.

  Receiving obstacles for the broadcast program in the receiving apparatuses 1, 1,... Are caused by problems of the receiving apparatus alone, such as an improper installation method or failure of the antenna or equipment, Some of them have a wide range of effects, such as equipment failures, rain attenuation in satellite broadcasting, and malfunctions that depend on the type of receiver. In the present invention, information regarding abnormality in the reception state detected by each receiving device 1, 1,... Is exchanged with other receiving devices 1, 1,. Automate the identification of the cause of a reception failure due to a failure that depends on the model of the receiving device.

Also in broadcaster 2 and the receiving device manufacturer 6, by placing the fault information collection apparatus X ₁ and fault information collection device X ₂ is a server for collecting information on the received fault, via the Internet 7 The reception failure information corresponding to the failure of the facility, the rain attenuation, and the failure depending on the type of the reception device is collected from the reception devices 1, 1,... And used for quick analysis and response. Also, fault information collection apparatus X ₁ and fault information collection device X ₂ from the receiving device 1, 1, by issuing an acquisition request for fault information to ..., to realize the analysis of more detailed failure.

  In the receiving apparatus 1, 1,... In the figure, the receiving apparatuses 1, 1,..., Receiving apparatuses 1, 1,..., Receiving apparatus 1 in the area 1a, area 1b, area 1c, and area 1d surrounded by broken lines. ,... And the receiving device 1 are in a receiving state due to rain attenuation, equipment failure of the relay station transmission equipment 4, failure of a certain type of receiving device 1, 1,. Indicates that an abnormality has been detected.

[Receiver configuration]
Next, the configuration of the receiving apparatus 1 of the present invention will be described with reference to FIG. 2 (refer to FIG. 1 as appropriate). FIG. 2 is a block diagram showing the configuration of the receiving apparatus according to the embodiment of the present invention.

  The receiving apparatus 1 shown in FIG. 2 includes a terrestrial digital broadcast tuner 11, a BS / 110 degree CS digital broadcast tuner 12, which are general components for receiving terrestrial / BS / 110 degree CS digital broadcasts, OFDM (Orthogonal Frequency-Division Multiplexing) demodulation means 13, TC-8PSK (Trellis Coded 8 Phase Shift Keying) demodulation means 14, descrambler 15, B-CAS (Conditional reception system provided by BS Conditional Access Systems) Card 16, MPEG (Moving Picture Experts Group) decoder 17, video signal processing means 18, audio signal processing means 19, display 20, and speaker 21 , Clock 22, communication means 23, control means 24, input means 25, and external device input / output A means 26, which is a component for detecting, analysis and notifies the reception failure, a failure information processing means 30, a communication information processing unit 40 is configured to include a storage unit 50, a.

The terrestrial digital broadcast tuner 11 inputs a terrestrial digital broadcast signal via a UHF wave receiving antenna 11a, selects a broadcast signal in a frequency band of a desired specific channel, outputs it to the OFDM demodulation means 13, and selects it. Information about the channel in the station is output to the failure information processing means 30. The operation of the terrestrial digital broadcast tuner 11 is controlled by the control means 24 synchronously with other components via a control signal.
As will be described later, since the control unit 24 is connected to and controlled synchronously with each part of the components of the receiving device 1, description of the connection with the control unit 24 will be omitted as appropriate for the components described below. To do.

  The BS / 110 degree CS digital broadcast tuner 12 inputs a BS / 110 degree CS digital broadcast signal via a BS / CS broadcast wave receiving antenna 12a, and selects a broadcast signal in a frequency band of a desired specific channel. Output to the TC-8PSK demodulating means 14 and information related to the channel being selected to the fault information processing means 30.

  The OFDM demodulating unit 13 receives an OFDM-modulated terrestrial digital broadcast signal from the terrestrial digital broadcast tuner 11, demodulates the input broadcast signal, and outputs the demodulated signal to the descrambler 15 and the failure information processing unit 30.

  The TC-8PSK demodulator 14 receives a BS / 110 degree CS digital broadcast broadcast signal that is TC-8PSK modulated from the BS / 110 degree CS digital broadcast tuner 12, demodulates the input broadcast signal, and descrambler 15. And output to the fault information processing means 30.

  The descrambler 15 decrypts the demodulated scrambled broadcast signal input from the OFDM demodulator 13 and the TC-8PSK demodulator 14 using the scramble key supplied from the B-CAS card 16. And output to the MPEG decoder 17.

  The B-CAS card 16 supplies the descrambler 15 with a scramble key for decrypting the scrambled broadcast signal.

  The MPEG decoder 17 decodes the MPEG encoded broadcast signal input from the descrambler 15 and outputs the video signal and audio signal in the decoded broadcast signal to the video signal processing means 18 and the audio signal processing means 19, respectively. To do.

  The video signal processing unit 18 converts the video signal input from the MPEG decoder 17 and the reception abnormality detection information and reception failure information input from the failure information processing unit 30 into a video signal in a format that can be displayed on the display 20. Output to the display 20.

  The audio signal processing unit 19 converts the audio signal input from the MPEG decoder 17 and the reception abnormality detection information and reception failure information input from the failure information processing unit 30 into audio signals in a format that can be reproduced by the speaker 21. To the speaker 21.

  The display 20 and the speaker 21 (presentation means) each reproduce the video signal input from the video signal processing means 18 and the audio signal input from the audio signal processing means 19 so that the viewer can view them. Means.

  The clock 22 supplies time information to the control means 24. Each part of the components of the receiving device 1 can acquire time information via the control means 24. Further, the clock 22 can acquire time information from a time information providing server or the like via the Internet 7 via the communication means 23 and calibrate the time. The clock 22 may acquire time information from a PSI / SI TOT (Time Offset Table) included in a broadcast signal of digital broadcast and calibrate the time.

The communication means 23 is a communication interface for inputting / outputting information input / output from / to the communication information processing means 40 to the Internet 7 (see FIG. 1). sending and receiving information between the information collection device X ₁ and fault information collection device X _2.

  The control unit 24 is a control circuit that synchronously controls each part of the receiving apparatus 1 and is a computer including a CPU (Central Processing Unit).

  The input unit 25 is an input device such as a remote controller, a keyboard, or a mouse. The input unit 25 generates an input signal by an operation of a viewer or the like, and outputs the generated input signal to the control unit 24.

  The external device input / output means 26 inputs / outputs information between the external information processing means 30 and an external device such as a sensor for measuring the environment where the receiving apparatus 1 is installed, such as a rain sensor (not shown). Input / output interface. The external device input / output unit 26 controls the external device according to the control signal input from the failure information processing unit 30, acquires environmental measurement data such as rainfall, and outputs it to the failure information processing unit 30.

  The fault information processing means 30 measures the reception level to detect a reception state abnormality and creates reception abnormality detection information, as well as environmental data such as reception abnormality detection information and rainfall collected from other receivers 1. Are analyzed to determine the cause of reception failure, and reception failure information is created. The created information is output to the communication information processing means 40 and recorded in the storage means 50. Further, the failure information processing unit 30 presents the created information via the video signal processing unit 18 and the audio signal processing unit 19 so that the viewer can view the information through the display 20 and the speaker 21.

For this purpose, the failure information processing means 30 receives information on the channel being selected from the terrestrial digital broadcast tuner 11 and the BS / 110 degree CS digital broadcast tuner 12 and from the OFDM demodulation means 13 and the TC-8PSK demodulation means 14. The demodulated broadcast signal of the channel being selected is input. Further, the fault information processing means 30 inputs environmental data such as rainfall through the external device input / output means 26 as described above. The failure information processing means 30 inputs / outputs information such as reception abnormality detection information and reception failure information to / from the communication information processing means 40, and also receives reception abnormality detection information and reception from the storage means 50. Various information such as failure information is input / output as appropriate to store and reference information.
The detailed configuration of the failure information processing means 30 will be described later.

  The communication information processing unit 40 determines the transmission destination of the reception abnormality detection information and reception failure information created by the failure information processing unit 30, and also receives the reception abnormality detection information and reception failure information received from other receiving devices 1 and the like. The type is analyzed and output to the failure information processing unit 30, and the information analyzed into the type is stored in the storage unit 50 as appropriate.

For this purpose, the communication information processing unit 40 appropriately refers to the reception abnormality detection information and reception failure information created by the failure information processing unit 30 by referring to the reception failure notification destination information stored in the storage unit 50, and the like. Then, the data is transmitted to the other receiving device 1, the failure information collecting device X ₁ , and the failure information collecting device X ₂ via the Internet 7 via 23, and stored in the storage unit 50.
Further, the communication information processing means 40 receives the reception abnormality detection information transmitted from the other receiving apparatus 1, the fault information collecting apparatus X ₁ , or the fault information collecting apparatus X ₂ received via the Internet 7 via the communication means 23. Information such as reception failure information is input, and the input information is output to the failure information processing means 30 and stored in the storage means 50.
The detailed configuration of the communication information processing means 40 will be described later.

  The storage unit 50 is a storage device that stores information regarding reception failures such as reception abnormality detection information and failure information detection information, and various types of information such as a reception device list and notification destination information of reception failure information.

For this purpose, the storage unit 50 includes reception abnormality detection information and reception failure information created by the failure information processing unit 30, reception abnormality detection information, reception failure information, and reception abnormality detection information whose reception is managed by the communication information processing unit 40. Is stored in the list of other receivers that are the request destination when receiving the request, the notification destination information of reception failure, and the like. Further, the information stored in the storage unit 50 is appropriately read out by the failure information processing unit 30 and the communication information processing unit 40.
The detailed configuration of the storage unit 50 will be described later.

  Next, referring to FIG. 3 (refer to FIGS. 1 and 2 as appropriate), failure information processing means 30, communication information processing means 40, and storage means 50, which are components for detecting / analyzing / notifying reception failures, are described. The detailed configuration will be described. Here, FIG. 3 is a block diagram showing detailed configurations of the failure information processing means, the communication information processing means, and the storage means.

  The failure information processing means 30 includes a reception abnormality determination means 31 having a reception state measurement means 31a, a channel selection information detection means 31b, a reception abnormality detection means 31c, a reception abnormality occurrence source analysis means 31d, and a reception abnormality detection information creation means 31e. A reception failure determination unit 32 having a communication information analysis unit 32a, a reception failure analysis unit 32b, and a reception failure information creation unit 32c.

The communication information processing unit 40 includes a transmission destination determination unit 41, an information transmission unit 42, and an information reception unit 43.
The storage means 50 includes a reception state information record DB (database) 51, a broadcast suspension information storage means 52, an EPG (Electronic Program Guide) storage means 53, an attribute information storage means 54, and a reception failure information record. A DB 55, a reception abnormality detection information recording DB 56, a receiving device list storage unit 57, a reception failure information notification destination storage unit 58, and a reception failure handling data storage unit 59 are configured.
Hereinafter, functions of each component will be sequentially described.

First, the configuration of each part of the failure information processing means 30 will be described.
The reception state measurement means 31a receives the broadcast signals of the terrestrial digital broadcast and the BS / 110 degree CS digital broadcast demodulated by the OFDM demodulation means 13 and the TC-8PSK demodulation means 14, respectively, and measures the reception level of the broadcast signal. Here, the reception level corresponds to a C / N (Carrier to Noise ratio) of a broadcast signal. The reception state measuring unit 31a records the measured reception level in the reception state information recording DB 51 as reception state information together with time information and channel selection information described later. The measurement time is obtained by referring to the time information supplied by the clock 22 when the reception state measurement unit 31a measures the reception level.
In addition, the reception state measuring unit 31a measures the reception level of the broadcast signal that is being viewed (tuned in) regularly while the reception device 1 is viewing, and accumulates it in the reception state information recording DB 51 as reception state information.

The channel selection information detecting means 31b receives broadcast signals received by the terrestrial digital broadcast tuner 11 and the BS / 110 degree CS digital broadcast tuner 12 and detects the currently selected media and channel. The channel selection information detection unit 31b outputs channel selection information indicating the detected medium and channel to the communication information analysis unit 32a, and also receives the reception state information together with the reception level and time information measured by the reception state measurement unit 31a. Recorded in the record DB 51.
Here, media refers to the type of broadcast medium such as terrestrial digital broadcast, BS broadcast, and 110 degree CS broadcast.

Here, the data structure of the reception state information D1 will be described with reference to FIG. 4 (see FIGS. 1 to 3 as appropriate). FIG. 4 is a diagram illustrating an example of reception state information data.
The reception status information D1 is one of information used in processing between the reception device 1 and other reception devices 1 together with reception abnormality detection information, reception normal information and reception failure information described later. This information uses a common format in order to unify the interpretation of data in the plurality of receiving apparatuses 1. In addition, information is described in an XML (eXtensible Markup Language) format that is a general-purpose language. In principle, the reception status information D1 is used inside the reception device 1. However, when there is an acquisition request from the failure information collection device X ₁ or the failure information collection device X ₂ , it is transmitted outside the reception device 1. Is done.

As shown in FIG. 4, in the reception status information D1, “type” is described at the head of the data in order to distinguish the type of data. “Media”, “channel”, “reception level”, and “measurement time” are described.
Here, “media” and “channel” indicate the type and channel of the broadcast medium currently selected when the reception state is measured, respectively, and “reception level” and “measurement time” are measurements obtained by measuring the reception state. Data and measurement time are shown.
Returning to FIG. 3 (refer to FIGS. 1 and 2 as appropriate), the description of the components for detecting, analyzing, and notifying a reception failure will be continued.

  The reception abnormality detection means 31c periodically refers to the measurement data of the reception level in the reception state information recorded in the reception state information recording DB 51. The reception abnormality detection means 31c detects the presence / absence of an abnormality in the reception state by comparing the measurement data with a constant value defined in advance as a normal value of the reception level. When the abnormality is detected, the reception abnormality detecting unit 31c searches the reception failure information recording DB 55 for reception failure information that is considered to be related to the currently occurring abnormality.

  Here, whether the detected reception status abnormality is considered to be related to the currently occurring abnormality is described as a failure in which the media and channel that detected the abnormality match the time zone of the measurement time It is determined by checking whether or not the reception failure information is stored in the reception failure information DB 55.

The reception abnormality detection unit 31c displays a message indicating that a reception failure has occurred over a certain range and information of an inquiry destination when the corresponding reception failure information exists, and receives the reception device 1 when the reception failure information does not exist. A message for allowing the viewer of the receiving apparatus 1 to select whether or not to perform self-diagnosis is output to the video signal processing means 18 and the audio signal processing means 19, and reception status information is output to the reception abnormality source analysis means 31d To do.
Further, the reception abnormality detection unit 31c acquires broadcast suspension information from the broadcast suspension information storage unit 52 so as to prevent erroneous detection of a state in which the reception level is lowered due to broadcast suspension as being abnormal. It has become.

  The reception abnormality occurrence source analysis unit 31d inputs the reception state information from the reception abnormality detection unit 31c, and also inputs a self-diagnosis request from the control unit 24, and executes the self-diagnosis. In the self-diagnosis, the reception status of media and channels that can be received by the receiving device 1 is checked. Note that the necessity information for performing the self-diagnosis is input by the viewer using the input unit 25 such as a keyboard or a mouse, and is input to the reception abnormality occurrence source analysis unit 31d via the control unit 24.

  In order to check the reception status of media and channels other than those described in the reception status information acquired from the reception error detection means 31c, that is, the media and channels other than the corresponding channel where the reception status abnormality is detected, a reception error has occurred. The source analysis unit 31 d controls the channel selection of the terrestrial digital broadcast tuner 11 and the BS / 110 degree CS digital broadcast tuner 12 via the control unit 24. Further, the reception abnormality occurrence source analysis means 31d accumulates and analyzes reception status information of a plurality of media and channels in a cache memory provided in the reception abnormality occurrence source analysis means 31d. Channels are abnormal, B: All channels in a media are abnormal, C: Some channels are abnormal, D: All channels are all abnormal Information on the media and channel in which the abnormality was found together with the classification code is output to the reception abnormality detection information creating means 31e.

  The reception abnormality detection information creation unit 31e acquires “reception device ID (IDentifier)”, “reception device manufacturer”, “model”, and “position information” as attributes of the reception device 1 from the attribute information storage unit 54. Header information, a reception error source classification code input from the reception error source analysis means 31d, media and channel information in which an abnormality is detected, and a receiver list storage means used to determine the transmission destination 57, the reception abnormality detection information or the reception normal information including the list name of the reception device stored in 57 is generated, and the generated reception abnormality detection information or the reception normal information is output to the transmission destination determination means 41, and the reception abnormality Record in the detection information record DB.

  Here, the data structures of the reception abnormality detection information D2 and the reception normal information D3 will be described with reference to FIGS. 5 and 6 (refer to FIGS. 1 to 3 as appropriate). FIG. 5 is a diagram illustrating an example of reception abnormality detection information data, and FIG. 6 is a diagram illustrating an example of reception normal information data.

The reception abnormality detection information D2 includes a generated classification code, a medium and a channel in which an abnormality is detected, an attribute when the reception abnormality occurrence source analyzing unit 31d performs self-diagnosis and an abnormality is detected in at least one channel. Based on the header information acquired from the information storage means 54, it is created by the reception abnormality detection information creation means 31e.
The reception normal information D3 receives a request for reception abnormality detection information from another receiving apparatus 1, and the reception abnormality source analysis means 31d performs a self-diagnosis, and abnormality is detected from all channels of all media. If not, it is created by the reception abnormality detection information creation means 31e.
As described above, the reception abnormality detection information D2 and the reception normal information D3 are described in a common format in the XML format.

  As shown in FIG. 5, the reception abnormality detection information D <b> 2 describes “type” that distinguishes the type of data at the top. Next, “receiving device ID”, “receiving device manufacturer”, “model”, “position information”, and “measurement time” are described as header information. Next, a set of “media” and “channel” is listed as “classification code (A to C)” and channel information in which an abnormality is detected. Finally, a “usage list”, which is a list of other receiving apparatuses 1 registered with inquiry destinations, used for investigating the cause of the reception failure is described.

Here, the “receiving device ID” indicates an identifier for identifying the receiving device 1 that has detected an abnormality. “Receiver manufacturer” and “model” indicate the manufacturer and model name of the receiver 1, respectively. “Position information” indicates a location (GPS (Global Positioning System) data in this example) where the receiving device 1 is installed.
“Media” and “Channel” indicate the type and channel of the broadcast medium currently selected when the reception state is measured, and “Reception level” and “Measurement time” indicate measurement data obtained by measuring the reception state. And the measurement time.
Further, the “usage list” is the reception selected from the reception device list stored in the reception device list storage unit 57 by the reception abnormality detection information creation unit 31e to determine the transmission destination of the created reception abnormality detection information. Indicates the type of device list.

  Also, as shown in FIG. 6, the reception normal information D3 describes “type” that distinguishes the type of data at the head, similarly to the reception abnormality detection information D2. Next, “receiving device ID”, “receiving device manufacturer”, “model”, “position information”, and “measurement time” are described as header information. Finally, “D” indicating that reception of all media and all channels is normal is described. Unlike the reception abnormality detection information D2, media, channels and usage lists are not included.

In this embodiment, the reception abnormality detection information and the reception normal information are handled as different types of information, but the reception normal information is handled as one reception abnormality detection information whose “classification code” is “D”. May be. Further, the format of the reception status information, reception abnormality detection information, reception normal information, and reception failure information is not limited to the data structure used in the present embodiment, and the description language is not limited to the XML format.
Returning to FIG. 3 (refer to FIGS. 1 and 2 as appropriate), the description of the components for detecting, analyzing, and notifying a reception failure will be continued.

  The communication information analysis unit 32a inputs the reception abnormality detection information from the information reception unit 43, and searches the reception abnormality detection information recording DB 56 for reception abnormality detection information including abnormality information that is considered to be the same as the input reception abnormality detection information. . If there is matching abnormality information, the communication information analysis unit 32a outputs the reception abnormality detection information to the reception failure analysis unit 32b. On the other hand, if it does not exist, the communication information analyzing means 32a receives and confirms the channel and information currently selected by the viewer from the channel selection information detecting means 31b within a range that does not hinder the viewer's viewing. The control unit 24 is requested to select the terrestrial digital broadcast tuner 11 or the BS / 110 degree CS digital broadcast tuner 12 for the media or channel in which the abnormality described in the abnormality detection information is detected.

  The reception failure analysis unit 32b receives the reception abnormality detection information from the communication information analysis unit 32a, accumulates the received reception abnormality detection information in a cache memory provided in the reception failure analysis unit 32b for a certain period of time, and periodically. refer.

  The reception failure analysis unit 32b generates a reception failure that affects a certain range when reception abnormality detection information from another receiving device 1 that is considered to be the same abnormality within a certain time exceeds a predetermined number. The reception abnormality detection information that is the basis for the determination is output to the reception failure information creation means 32c. Here, whether or not the reception abnormality detection information is regarded as the same abnormality is determined by confirming whether the media and the channel described in the reception abnormality detection information match the time zone of the measurement time.

  On the other hand, the reception failure analysis unit 32b determines that an individual reception failure has occurred in the receiving device alone when the predetermined number is not exceeded within a certain time. The reception failure analysis unit 32b outputs information such as the cause of the reception failure and the inquiry destination to the video signal processing unit 18 and the audio signal processing unit 19 based on the determination result in order to present to the viewer in any case. The inquiry destination information is acquired from the reception failure information notification destination storage means 58. The reception failure analysis unit 32b acquires information from an external device (not shown) such as a rain sensor and a sensor for measuring the environment of the installation location of the reception device 1 through the external device input / output unit 26. This will be used to identify the cause of the failure.

  The reception failure information creating unit 32c receives the reception abnormality detection information from the reception failure analysis unit 32b, acquires the attribute information of the receiving device 1 from the attribute information storage unit 54 as transmission source information, and inputs a plurality of input reception abnormalities. Aggregate detection information and create reception failure information including source information. The reception failure information creation unit 32 c records the created reception failure information in the reception failure information recording DB 55 and outputs it to the transmission destination determination unit 41.

  Here, the data structure of the reception failure information D4 will be described with reference to FIG. FIG. 7 is a diagram illustrating an example of reception failure information data.

The reception failure information D4 is obtained by the reception failure information creating unit 32c when the reception failure analysis unit 32b determines that a reception failure affecting the plurality of reception devices 1 in a certain range has occurred. D2 (see FIG. 5) is collected and created.
As described above, the reception failure information D4 is described in a common format in the XML format.

  As shown in FIG. 7, in the reception failure information D4, “type” for distinguishing the type of data is described at the head. Next, the attribute information of the receiving device 1 that is the transmission source that creates and transmits the reception failure information D4 is described as “transmission source information”. The transmission source information includes “receiving device ID”, “receiving device manufacturer”, “model”, and “position information”.

  Then, “classification code” indicating the occurrence of reception abnormality, “medium” and “channel” as “failure occurrence channel” information, and “usage list” which is a list of other receiving devices 1 used for analysis of reception failure. ”Is described, and the attribute information of the receiving apparatus 1 in which a failure has occurred last is listed as“ failure occurrence device ”information.

Here, the “reception device ID”, “reception device manufacturer”, “model”, and “location information” are attribute information acquired by the reception failure information creation unit 32c from the attribute information storage unit 54 when the reception failure information is created. is there. The “measurement time”, “media”, “channel”, and “use list” are information obtained by the reception failure information creation unit 32c extracted from the collected reception abnormality detection information.
Returning to FIG. 3 (see FIGS. 1 and 2 as appropriate), the configuration of each unit of the communication information processing means 40 will be described.

  The transmission destination determination unit 41 determines a transmission destination of information related to a failure such as reception abnormality detection information and reception failure information, and outputs the determined transmission destination information to the information transmission unit 42 together with the information. More specifically, the transmission destination determination unit 41 inputs the reception abnormality detection information from the reception abnormality detection information creation unit 31e, and uses the reception device 1 that is the transmission destination of the input reception abnormality detection information to use the reception abnormality detection information. A list of types described in the list is acquired from the receiving device list storage means 57, and an appropriate receiving device 1 is selected from the acquired list and determined.

At this time, the transmission destination determination means 41 first refers to the position information dependent reception device list, and determines several reception devices 1 existing in geographically close locations as transmission destinations. In addition, when the transmission destination determination unit 41 determines that the reception failure is not caused by a geographical cause, the transmission destination determination unit 41 refers to the model-dependent reception device list and transmits a plurality of reception devices 1 of the same model to the transmission destination. To decide.
The transmission destination determination unit 41 outputs the reception abnormality detection information to the information transmission unit 42 together with the determined transmission destination address information. Here, the address information indicates an IP (Internet Protocol) address or information for recognizing the IP address.

The transmission destination determining means 41, the received fault information and enter the received failure information from the creating means 32c, the broadcaster 2 to send the received failure information inputted fault information collection apparatus X ₁ or of the receiving device manufacturer 6 The failure information collecting device X ₂ and the receiving device 1 are determined with reference to the lists stored in the receiving failure information notification destination storing unit 58 and the receiving device list storing unit 57, respectively.

At this time, the transmission destination determining means 41 determines in the case of failure due to broadcast occurs, the fault information collection apparatus X ₁ broadcasters 2 carrying the media or channels to the destination, if disorder that depends on the type of the receiving apparatus 1 determines the fault information collection device X ₂ of the receiving device manufacturer 6 to the destination. Further, the reception failure detection means 32b transmits the reception abnormality detection information from the reception device 1 to some other reception devices 1, and based on the reception abnormality detection information or the reception normal information acquired as the response, there is When recognizing the occurrence of a failure in the range, the transmission destination determining means 41 also determines the receiving device 1 as the transmission destination of the reception failure information. When the transmission destination is determined, the transmission destination determination unit 41 outputs the reception failure notification information to the information transmission unit 42 together with the address information of the determined transmission destination.

  In addition, when reception abnormality detection information is received from another reception device 1, the reception state of the reception device 1 is investigated based on the information, and when reception abnormality detection information or reception normal information is transmitted as an answer, The transmission destination determination unit 41 determines the transmission destination as the other reception device 1 that has transmitted the reception abnormality detection information. Then, the transmission destination determination unit 41 outputs the reception abnormality detection information or the reception normal information created by the reception abnormality determination unit 31 to the information transmission unit 42 together with the determined transmission destination address information.

The information transmission unit 42 receives various information and transmission destination information input from the transmission destination determination unit 41 or the information reception unit 43 via the communication unit 23 via the Internet 7 and other reception devices 1 and information collection devices X. and outputs, etc. ₁ or the information collection device _{X 2.}

  Specifically, the information transmission unit 42 outputs the reception abnormality detection information, the reception normal information or the reception failure information, and the transmission destination address information input from the transmission destination determination unit 41 to the communication unit 23 to perform communication. The information is transmitted to the input address via the Internet 23 via the means 23.

Furthermore, the information transmitting means 42, as a reply to request for the reception status information from the information receiving unit 43 fault information collection apparatus X ₁ is received via the communication means 23 or from the fault information collection device X _2, and reception status information By inputting the address information of the failure information collection device X ₁ or the failure information collection device X ₂ of the request source from the information reception means 43 and outputting the received reception status information and address information to the communication means 23, the communication means The reception status information is transmitted to the input address via the Internet 7 via 23.

Information receiving means 43 via the communication unit 23 classifies the various types of information received from the other receiving apparatus 1 and fault information collection apparatus X ₁ or fault information collection device X _2, and outputs to the communication information analysis unit 32a, The information is appropriately stored in each part of the storage means 50. Also, the information receiving unit 43, when receiving a request for receiving status information from the fault information collection apparatus X ₁ or fault information collection device X ₂ is a corresponding reception state information is the source of the acquisition request The address information of the failure information collection device X ₁ or the failure information collection device X ₂ is output to the information transmission means 42.

  Specifically, the information receiving unit 43 classifies information received from other receiving apparatuses 1 through the communication unit 23 into reception abnormality detection information, reception normal information, and reception failure information, and receives reception abnormality detection information and The reception normal information is recorded in the reception abnormality detection information recording DB 56, and the reception failure information is recorded in the reception failure information recording DB 55. In addition, when receiving the reception abnormality detection information, the information reception unit 43 outputs the reception abnormality detection information to the communication information analysis unit 32a.

Also, the information receiving unit 43, when receiving a request for receiving status information from the fault information collection device X ₂ of the fault information collection apparatus X ₁ and broadcaster second receiver device manufacturer 6, the reception state information recording DB51 It acquires reception status information requested with reference to output with the requesting address information fault information collection apparatus X ₁ or fault information collection device X ₂ to the information transmitting unit 42.

Next, the structure of each part of the memory | storage means 50 is demonstrated.
The reception state information record DB 51 records and stores reception state information including the reception level of the broadcast signal measured by the reception state measurement unit 31a and the medium and channel for which the reception level detected by the channel selection information detection unit 31b is measured. It is a database to manage. The reception status information recorded in the reception status information recording DB 51 is referred to by the reception abnormality detection means 31 c and the information reception means 43.

  The broadcast suspension information storage means 52 refers to SI (Service Information, program arrangement information) and PSI (Program Specific Information) stored in the EPG storage means 53, and broadcast suspension time for each channel of each medium. It is a storage device that extracts and manages. The broadcast suspension information stored in the broadcast suspension information storage unit 52 is referred to by the reception abnormality detection unit 31c, and is used to prevent erroneous detection of the reception level measurement data during the broadcast suspension period.

  The EPG storage means 53 is a storage device that accumulates and manages SI and PSI necessary for presenting an EPG to a user. The SI and PSI stored in the EPG storage means 53 are referred to by the broadcast suspension information storage means 52 and used for extracting the broadcast suspension time.

  The attribute information storage means 54 includes a “receiving device ID” for identifying the receiving device 1, a “receiving device manufacturer” that is a manufacturer of the receiving device 1, a “model” of the receiving device 1, and a “receiving device 1”. It is a storage device that manages attribute information including “position information”. Each information of “receiving device ID”, “receiving device manufacturer”, and “model” is determined when the receiving device 1 is shipped from the factory, and is stored in the attribute information storage means 54. “Position information” indicates the installation location of the receiving device 1 and includes GPS data, a postal code, an address, and the like. When the receiving device 1 is sold or when the viewer installs the receiving device 1 at home or the like. Is stored in the attribute information storage means 54. The position information may be not only two-dimensional position information but also three-dimensional position information including the altitude of the installation location. The attribute information stored in the attribute information storage means 54 is referred to by the reception abnormality detection information creation means 31e and the reception failure information creation means 32c.

The reception failure information recording DB 55 is a database for recording, storing and managing reception failure information. A receiving failure information which the receiving apparatus 1 is created at the receiving failure information creation unit 32c, other receiving apparatus 1 by the information receiving unit 43 via the communication unit 23, a fault information collection apparatus X ₁ or fault information collection device X ₂ Received reception failure information is recorded. The reception failure information recorded in the reception failure information recording DB 55 is referred to by the reception abnormality detection unit 31c and the reception failure analysis unit 32b.

  The reception abnormality detection information recording DB 56 is a database for recording, storing, and managing reception abnormality detection information and reception normal information. The reception apparatus 1 records the reception abnormality detection information and reception normal information created by the reception abnormality detection information creation means 31e, and the reception abnormality detection information and reception normal information received by the information reception means 43 via the communication means 23. . The reception abnormality detection information and the reception normal information recorded in the reception abnormality detection information recording DB 56 are referred to by the communication information analysis unit 32a.

  The reception device list storage unit 57 is a storage device that stores and manages a list of other reception devices 1 that are transmission destinations of reception abnormality detection information and reception failure information. The receiving device list storage means 57 is a position information dependent receiving device list that is a list of receiving devices 1 that are geographically close to the installation location of the receiving device 1 and a list of receiving devices 1 of the same model as the receiving device 1. Stores a model-dependent receiver list. Each list includes address information that is an inquiry destination of the registered receiving device 1. This list is stored in advance in the receiving device list storage means 57 at the time of factory shipment, sales, etc., but if necessary, from the broadcaster 2 or the receiving device manufacturer 6 via the Internet 7 via the communication means 23. It may be configured to be obtained and stored. The list of the receiving devices 1 stored in the receiving device list storing unit 57 is referred to by the reception abnormality detection information creating unit 31e and the transmission destination determining unit 41.

Receiving fault information notification destination storage means 58, the address information and receiving fault destination to become fault information collecting device information X ₁ and fault information collection device X _2, during and reception error detection when receiving fault address and phone number It is a storage device that stores and manages information on inquiries such as. Information regarding each broadcaster 2 and the receiving device manufacturer 6 of the receiving device 1 is stored. The address information and the inquiry destination information stored in the reception failure information notification destination storage unit 58 are referred to by the reception failure analysis unit 32b and the transmission destination determination unit 41.

  The reception failure handling data storage unit 59 includes the receiving device 1 acquired by the information receiving unit 43 via the communication unit 23 via the Internet 7 from the other receiving device 1, the homepage of the broadcaster 2, or the receiving device manufacturer 6. This is a storage device for storing various data for dealing with a reception failure, such as software that corrects the above-mentioned problems and complementary data that complements a broadcast program that could not be received due to a reception failure due to a reception failure. The receiving device 1 can perform autonomous recovery from a reception failure using the data by the control means 24. The data stored in the reception failure handling data storage unit 59 is referred to by the information transmission unit 42 and is transmitted to the other reception device 1 via the communication unit 23 in order to recover the failure of the other reception device 1. The

  Here, a description will be given of recovery from an autonomous failure in cooperation with another receiving device 1 when a reception failure occurs. In particular, it is useful in storage-type broadcasting such as server-type broadcasting for mobile terminals based on the ISDB-Tmm system and download services in advanced BS digital broadcasting, for which service provision is being considered after 2011.

  When a reception failure occurs in storage-type broadcasting, the content of the broadcast program is stored in the receiving device 1 with some packets missing, and if it is program content, the viewer can view a part of the program. It is thought that it will disappear. Therefore, a method for complementing the lack of download contents in the storage type broadcasting will be described.

Regarding the lack of a content packet, first, when it is detected that the reception level of the broadcast signal of the receiving device 1 has exceeded a threshold that may cause a loss, the packet is transmitted to the content that was being downloaded at that time. Check whether there is any omission. Upon confirming the omission, the receiving device list storage means 57 refers to the location information dependent receiving device list, selects another receiving device 1 that is geographically close, and makes an inquiry to the selected receiving device 1. The occurrence of packet loss in the other receiving apparatus 1 is confirmed. If it can be confirmed missing in the packet that is dependent on the area (location information), and notifies the fault information collection apparatus X ₁ of the broadcasting business 2. Failure information collection device X ₁ is, information about the area of the receiving device 1, packet loss does not occur, the notification to the receiving device 1, which has carried out the notification, the receiving device 1 has occurred missing from there Acquire missing packets and complement the contents. Even when a loss occurs due to an individual failure of the receiving device 1 alone, content can be complemented by acquiring the missing packet from the other receiving device 1 recognized by the receiving device 1. For example, if the missing packet by rain attenuation download services Advanced BS digital broadcasting has occurred, fault information collection apparatus X ₁ notifies the local fine weather to the receiving apparatus 1, the receiving apparatus 1 is installed in the area receiving Efficient complementation can be realized by acquiring missing packets from the device 1 and performing complementation.

  Next, the configuration of the failure information collection device X will be described with reference to FIG. 8 (see FIGS. 1 to 3 as appropriate). FIG. 8 is a block diagram illustrating a configuration of the failure information collection apparatus.

[Configuration of failure information collection device]
The failure information collection device X shown in FIG. 8 is installed in the broadcaster 2 and the reception device manufacturer 6, collects and analyzes reception failure information from the reception device 1, and promptly notifies viewers and users. It is a device that contributes to countermeasures. In addition, distribution of data for dealing with a reception failure is performed such that the reception device manufacturer 6 distributes corrected software in order to eliminate a software defect of the reception device 1.

  The failure information collection device X includes a communication unit 101, a reception failure information storage DB 102, a reception failure information synthesis unit 103, a reception failure information analysis unit 104, a reception failure information notification unit 105, and an external device input / output unit 106. Display 107, speaker 108, failure DB 109, information display means 110, DB search means 111, information input means 112, reception state information acquisition request means 113, reception state information storage DB 114, and reception failure response And a data storage DB 115.

Next, the function of each part will be described.
The communication unit 101 is a communication interface that is connected to the Internet 7 and transmits / receives information to / from the receiving device 1 or the like. The communication unit 101 receives the reception failure information and the reception state information transmitted from the receiving device 1, and outputs and stores them in the reception failure information accumulation DB 102 and the reception state information accumulation DB 114, respectively.
Further, the communication unit 101 transmits a reception state information acquisition request input from the reception state information acquisition request unit 113 to the reception device 1.

  The reception failure information accumulation DB 102 stores, accumulates, and manages reception failure information transmitted from the reception device 1 acquired via the communication unit 101 and reception failure information synthesized by the reception failure information synthesis unit 103. It is. The reception failure information stored in the reception failure information storage DB is referred to by the reception failure information combining unit 103, the reception failure corresponding data storage DB 115, the information display unit 110, the DB search unit 111, and the reception state information acquisition request unit 113. .

The reception failure information combining unit 103 refers to the reception failure information stored in the reception failure information storage DB 102 and combines reception failure information that can be estimated to have been created due to the same failure. The reception failure information combining unit 103 stores the combined reception failure information in the reception failure information accumulation DB 102 and outputs it to the reception failure information analysis unit 104.
Here, whether or not the reception failure information is the same confirms whether the media and channel described in the reception failure information match the time zone of the reception level measurement time when an abnormality is detected. And estimate.

The reception failure information analyzing unit 104 receives the reception failure information synthesized by the reception failure information combining unit 103, the failure information acquired from the external device such as the broadcast facility failure communication device 140 via the external device input / output unit 106, and the reception failure information The failure content is analyzed with reference to the reception state information of the receiving device 1 stored in the state information storage DB 114. For example, the reception failure information analysis unit 104 specifies the failure cause and the detailed failure occurrence area based on the reception failure information collected based on the position information dependent reception device list and the failure information acquired from the broadcast facility failure notification device. Do.
The reception failure information analysis unit 104 creates reception failure information based on the information about the failure obtained as a result of the analysis, outputs the reception failure information to the reception failure information notification unit 105, and stores the reception failure information in the failure DB 109.

  The reception failure information notification means 105 is currently being generated to notify an external device such as the receiving device 1, the broadcast program sending device 120, the broadcaster 2, or the homepage creation device 130 operated by the receiving device manufacturer 6. Create reception failure information for. The reception failure information notification unit 105 transmits the created reception failure information to an external device such as the broadcast program transmission device 120 or the homepage creation device 130 via the external device input / output unit 106.

  The external device input / output means 106 is a communication interface with external devices such as the broadcast program transmission device 120, the homepage creation device 130, and the broadcast facility failure communication device 140. The external device input / output unit 106 transmits the reception failure information input from the reception failure information notification unit 105 to the broadcast program transmission device 120 and the homepage creation device 130 which are external devices, and the broadcast equipment failure communication device which is an external device. The failure information transmitted from 140 is received, and the received failure information is output to the received failure information analysis means 104.

  The display 107 and the speaker 108 reproduce and present the reception failure information input from the reception failure information notifying means 105 so that the operator and the administrator of the failure information collecting apparatus X can view it visually and audibly. To do.

  The failure DB 109 is a database that stores, accumulates, and manages failure information analyzed by the received failure information analysis unit 104. The failure information stored in the failure DB 109 is referred to by the information display means 110 and the DB search means 111. In addition, information is referred to the reception failure handling data storage DB 115.

  The information display unit 110 refers to information stored in the reception failure information accumulation DB 102 and the failure DB 109 and displays the information. Further, the information display unit 110 displays the acquisition request information on the reception state information input from the reception state information acquisition unit 113.

  The DB search unit 111 searches the information stored in the reception failure information accumulation DB 102 and the failure DB 109 based on the search condition information input from the information input unit 112 and the reception state information acquisition request unit 113.

  The information input unit 112 is an information input device such as a keyboard or a mouse, and inputs a search query that is a search condition and outputs it to the DB search unit 111. Further, the information input unit 112 inputs information related to selection and determination of the receiving apparatus 1 that transmits a request from the reception state information acquisition request unit 113 and outputs the information to the reception state information acquisition request unit 113.

  The reception state information acquisition request unit 113 searches the reception failure information accumulation DB 102 based on information regarding selection and determination of the receiving device 1 that transmits the request, which is input from the information input unit 112, and acquires a reception state information acquisition request. The receiver device 1 is determined, the address information of the receiver device 1 is output to the communication means 101, and an acquisition request is transmitted to the receiver device 1 via the Internet 7.

  The reception status information accumulation DB 114 is a database that stores, accumulates, and manages reception status information received via the communication unit 101 from the reception device 1 that is the reception status information acquisition request destination. The reception status information stored in the reception status information accumulation DB 114 is referred to by the reception failure information analysis unit 104.

  The reception failure handling data storage DB 115 refers to the information related to failures stored in the reception failure information storage DB 102 and the failure DB 109, and handles reception failures for dealing with the receiving device 1 in which the reception failure occurs. It is a database that accumulates data. The reception failure handling data stored in the reception failure handling data storage DB 115 is transmitted via the communication unit 101 to the receiving device 1 that requests the reception failure handling data.

The broadcast program sending device 120 sends a broadcast program to a transmission facility such as the backbone station transmission facility 3 or the broadcast satellite 5. The broadcast program sent to the transmission facility is broadcast by the transmission facility and can be reproduced by the receiving device 1 so as to be viewable.
The broadcast program transmission device 120 can incorporate the failure information notified from the failure information collection device X into a broadcast program, for example, and provide it to the viewer via a broadcast wave.

The homepage creation device 130 is a server that is operated by the broadcaster 2 and the receiving device manufacturer 6, and is connected to the Internet 7.
The homepage creation device 130 posts the failure information notified from the failure information collection device X so that it can be viewed on the homepage. This makes it possible to quickly provide reception failure information to viewers connected to the Internet 7.

Broadcast facility failure communication device 140 is installed in association with the core station transmitting equipment 3 and the relay station transmission facility 4, when a failure occurs in the transmission equipment of the corresponding broadcast, the failure information in the failure information collecting device X ₁ Send. Fault information collection apparatus X ₁ is thereby in addition to the reception failure, it can also collect information of the transmission failure, the cause of the failure more quickly and more accurately analyzed.

Next, the operation of the receiving apparatus 1 in the embodiment of the present invention will be described with reference to the drawings as appropriate.
First, with reference to FIG. 9 (refer to FIGS. 1 to 3 as appropriate), the flow of information related to reception failures between the plurality of reception devices 1A to 1C and the failure information collection device X will be described. Here, FIG. 9 is a sequence diagram showing a flow of transmission / reception of information regarding failure information between a plurality of receiving devices and a failure information collecting device.

[Cooperation between receivers]
In the sequence diagram shown in FIG. 9, the state of the cooperative operation by exchanging information between the receiving device 1A to the receiving device 1C is shown first. There are three types of information exchanged between the receiving device 1A to the receiving device 1C: “reception abnormality detection information”, “reception normal information”, and “reception failure information”. Of the three receiving apparatuses 1A to 1C, the receiving apparatus 1A first detects the receiving abnormality, and the receiving apparatus 1B detects the same receiving abnormality as the receiving apparatus 1A. It is assumed that no reception abnormality is detected.
In addition, it is assumed that the receiving devices 1A to 1C and the failure information collecting device X recognize the transmission destinations of information such as mutual IP addresses.

First, when the receiving apparatus 1A detects abnormal reception (step S10), reception abnormality detection information is created. The receiving device 1A transmits reception abnormality detection information to a plurality of surrounding receiving devices 1B and 1C (steps S11 and S12).
Note that either step S11 or step S12 may be executed first.

  Receiving apparatus 1B that has received the reception abnormality detection information performs an inspection to determine whether or not an abnormality has occurred in itself (step S13). The receiving device 1B that has detected the abnormality (step S14) creates reception abnormality detection information, and transmits the created reception abnormality detection information to the receiving device 1A (step S15). That is, whether or not the reception abnormality detection information transmitted from the reception apparatus 1A has the same abnormality as the abnormality described in the reception abnormality detection information for the reception apparatus 1B in a state where no reception abnormality is detected. This corresponds to a reception abnormality detection information acquisition request for requesting information.

  Note that the receiving apparatus 1B is the same even when it detects an abnormality after receiving the reception abnormality detection information transmitted from the receiving apparatus 1A and before performing the reception abnormality inspection starting from the reception. If it is abnormal, reception abnormality detection information is created, and the reception abnormality detection information is transmitted to the reception device 1A as a response to the reception abnormality detection information acquisition request from the reception device 1A. For this reason, the receiving device 1B does not transmit the reception abnormality detection information to the receiving devices 1C other than the receiving device 1A.

  On the other hand, the receiving apparatus 1C checks whether or not an abnormality has occurred in itself starting from reception of the reception abnormality detection information from the receiving apparatus 1A (step S16), and confirms that the reception state is normal. When confirmed (step S17), reception normal information is created and transmitted to the receiving apparatus 1A.

  The receiving device 1A waits for reception abnormality detection information for a certain period of time after transmission of the reception abnormality detection information. When the reception abnormality detection information exceeds a predetermined number, a reception failure that affects a certain range occurs. (Step S19), reception failure information is created. The receiving device 1A transmits the created reception failure information to the failure information collecting device X (step S20). Furthermore, the reception failure information is also transmitted to the receiving device 1B that has transmitted the reception abnormality detection information in step S15 (step S21).

Further, the failure information collection device X transmits a detailed failure information acquisition request to the receiving device 1B in order to acquire more detailed failure information (step S22). The receiving device 1B that has received the detailed failure information request transmits the reception state information to the requesting failure information collecting device X (step S23).
In this example, the failure information collection device X requests detailed failure information from the reception device 1B that has detected a reception abnormality. However, the failure information collection device X selects an arbitrary reception device and transmits a detailed failure information acquisition request. Failure information may be acquired.

  As described above, the receiving device 1A that has detected the reception abnormality collects information from a plurality of other receiving devices 1B and 1C installed around the installation location of the receiving device 1A, and determines the cause of the reception failure. To analyze. Accordingly, the reception device 1A can autonomously grasp the information on the reception failure without using a server such as the failure information collection device X.

In addition, only the receiving device 1A that first detects an abnormality among the receiving devices 1A to 1C installed around the installation site is representative, and information from other receiving devices 1B and 1C is representative. And the reception failure information obtained by analyzing and collecting the collected information is transmitted to the failure information collection device X on behalf of the reception device 1A. Can be prevented from becoming congested due to congestion, and the access load of the failure information collecting apparatus X can be reduced.
Further, the representative receiving device 1A transmits the analyzed failure information to the other receiving device 1B in which reception abnormality has occurred, and the receiving device can share the failure information. At this time, since communication of information is not performed more than necessary between the receiving apparatuses 1A to 1C, an increase in the communication amount of the communication line can be prevented.

  Further, when taking a countermeasure when a failure occurs, the failure information collection device X transmits reception failure handling data to the receiving device in which the failure has occurred. The receiving device that has received the reception failure handling data can autonomously recover from the failure using the reception failure handling data.

  At this time, the reception device (for example, 1A) that has received the reception failure handling data and transmitted to some of the reception devices, instead of transmitting to all the failure occurrence reception devices, generates the same failure in the vicinity based on the content of the failure The same data is transmitted to the receiving device (for example, 1B). By distributing the reception failure handling data in this manner, access concentration to the network and the failure information collection device X can be distributed.

  Next, referring to FIG. 10 (refer to FIGS. 1 to 3 as appropriate), the receiving apparatus 1 detects an abnormality in the reception state and determines whether or not the viewer performs self-diagnosis for all media and all channels. The operation until prompting will be described. Here, FIG. 10 is a flowchart showing the flow of processing from when the receiving device detects an abnormality in the reception state to prompt the viewer to determine whether to perform self-diagnosis for all media and all channels.

[Receiver operation]
As shown in FIG. 10, the receiving apparatus 1 according to the embodiment of the present invention detects the channel and channel being selected (viewed) by the channel selection information detection unit 31b (step S30). Then, the reception level measuring means 31a measures the reception level of the channel being selected (step S31) and records it in the reception status information recording DB 51 (step S32). In addition, the receiving device 1 refers to the reception state information recorded in the reception state information recording DB 51 by the reception abnormality detection unit 31c (step S33), and the reception level measurement data included in the reception state information is a predetermined constant value. It is checked whether or not there is lower abnormal data (step S34).

When there is no abnormal data in the measurement data (No in Step S34), the process returns to Step S30, and Steps S30 to S33 are executed to record the measurement data of the new reception level in the reception state information recording DB 51. It is checked whether or not there is abnormal data in the measurement data recorded in the reception state information recording DB 51 by the reception abnormality detecting means 31c (step S34).
As described above, when the viewer is watching the broadcast program, that is, when the power of the receiving device 1 is turned on, the receiving device 1 periodically measures the reception level by the reception state measuring unit 31a. The reception status information including the media and channel detected by the channel selection information detection means 31b is recorded in the reception status information recording DB 51, and the reception status information recorded in the reception status information recording DB 51 by the reception abnormality detection means 31c is periodically recorded. By referring to the above, the inspection of the reception level abnormality is repeated.
In addition, information can be acquired almost in real time by shortening the reception level measurement interval by the reception state measuring means 31a.

  When the reception abnormality detection unit 31c detects that there is abnormal data (Yes in step S34), the reception device 1 refers to the reception failure information recording DB 55 by the reception abnormality detection unit 31c, and the currently occurring reception failure information is displayed. It is checked whether or not there is an abnormality, and it is determined whether or not the detected abnormality in the reception state coincides with the abnormality caused by the currently occurring reception failure (step S35).

  Here, when it is determined that the detected abnormality in the reception state coincides with the abnormality caused by the currently occurring reception failure (Yes in step S35), the reception device 1 receives the reception failure information by the reception abnormality detection unit 31c. The contents are transmitted to the video signal processing means 18 and the audio signal processing means 19, and the contents of the failure information are reproduced from the display 20 and the speaker 21 so as to be viewable and presented to the viewer (step S39). Then, the process returns to step S30, and the reception state inspection is repeated.

  On the other hand, if there is no reception failure currently occurring or if the detected abnormality in the reception state does not coincide with the abnormality due to the currently occurring reception failure (No in step S35), the reception device 1 receives the reception abnormality detection means. By referring to the broadcast suspension information storage means 52 by 31c, it is confirmed whether or not the measurement time in the reception status information including the abnormal data matches the broadcast suspension time zone (step S36). The broadcaster 2 may stop broadcasting due to equipment maintenance or inspection. In order to prevent erroneous detection of a reception abnormality at such a time, broadcast suspension information is extracted from the SI or PSI stored in the EPG storage means 53 and used by referring to the information.

  If the measurement time coincides with the broadcast suspension time zone (Yes in step S36), the reception apparatus 1 causes the reception abnormality detection unit 31c to cause the abnormality in the measurement data to be an apparent abnormality rather than a reception failure. The process returns to step S30, and the reception state check is repeated again.

  If the measurement time does not coincide with the broadcast suspension time zone (No in step S36), the reception apparatus 1 determines that the reception abnormality detection unit 31c has detected an abnormality in the reception state, and the reception abnormality detection unit 31c A message indicating that an abnormality in the reception state is detected is transmitted to the video signal processing means 18 and the audio signal processing means 19, and the contents of the reception abnormality are reproduced from the display 20 and the speaker 21 so as to be viewable and presented to the viewer ( In step S37), a message as to whether or not to perform a self-diagnosis of the occurrence of reception abnormality is presented by the display 20 and the speaker 21 via the video signal processing means 18 and the audio signal processing means 19 (step S38), and input means 25, and waits for the selection information on the necessity of execution to be input from the viewer.

  Next, with reference to FIG. 11 (refer to FIGS. 1 to 3 as appropriate), an operation in which the receiving apparatus 1 performs self-diagnosis for all media and all channels will be described. Here, FIG. 11 is a flowchart showing the flow of self-diagnosis processing by the receiving apparatus.

When the self-diagnosis is not performed (No in step S50), the process at the time of detecting the reception abnormality is temporarily ended.
When performing self-diagnosis (Yes in step S50), the receiving apparatus 1 outputs reception state information including abnormality data from the reception abnormality detection unit 31c to the reception abnormality generation source analysis unit 31d, and a reception abnormality occurs. The source analysis means 31d is requested to analyze the occurrence status of abnormality in all media and all channels (step S51). The reception abnormality occurrence source analyzing means 31d temporarily stores the reception state information as abnormality data in the cache memory, and other than the channel of the medium in which the abnormality described in the reception state information has already been detected. In order to inspect the reception status of all media and all channels, the control unit 24 that controls the receiving apparatus 1 in a centralized manner is requested to control each necessary unit.

  First, the control means 24 of the receiving apparatus 1 requests the terrestrial digital broadcast tuner 11 or the BS / 110 degree CS digital broadcast tuner 12 to select a medium and channel other than those described in the reception status information. (Step S52). The terrestrial digital broadcast tuner 11 or the BS / 110 degree CS digital broadcast tuner 12 requested to select the channel changes the channel selection to a desired medium and channel (step S53). Then, the receiving apparatus 1 checks the reception state of the newly selected channel by the reception state measurement unit 31a, the channel selection information detection unit 31b, the reception state information record DB 51, and the reception abnormality detection unit 31c (step S54). ). Here, the process of checking the reception state in step S54 corresponds to step S200 including steps S30 to S33 indicated by a broken line in FIG. 10, and thus detailed description thereof is omitted.

  Subsequently, the receiving apparatus 1 checks whether or not there is abnormal data in the reception status information of the newly selected channel referred to in step 54 by the reception abnormality detecting means 31c (step S55). When there is abnormal data (Yes in step S55), the receiving apparatus 1 refers to the broadcast suspension information storage unit 52 by the reception abnormality detecting unit 31c, and the measurement time in the reception state information including the abnormal data is broadcast. It is confirmed whether or not it coincides with the suspension time zone (step S56). If the measurement time does not coincide with the broadcast suspension time zone (No in step S56), it is determined that an abnormality has been detected in the reception state of the channel, and the reception device 1 receives the reception state information from the reception abnormality detection means 31c. The reception error generation source analysis unit 31d outputs the reception state information to the cache memory in the reception error generation source analysis unit 31d as error data temporarily (step S57), and the process proceeds to step S58. Proceed to

  On the other hand, when there is no abnormal data in the reception status information (No in step S55) and when the measurement time coincides with the broadcast pause time zone (Yes in step S56), the reception device 1 receives the reception status information abnormally. The detection means 31c outputs to the reception abnormality occurrence source analysis means 31d, and the reception abnormality occurrence source analysis means 31d temporarily accumulates the reception state information as normal data in the cache memory (step S61), and proceeds to step S58.

  When the inspection of the abnormal state is completed for one channel (step S57 or step S61), the receiving apparatus 1 checks whether there are other uninspected media and channels (step S58), and there are uninspected media and channels. In such a case (Yes in step S58), the process returns to step S52, and the reception status check is repeated for other media and channels.

  On the other hand, if there are no uninspected media and channels (No in step S58), the reception apparatus 1 uses the reception abnormality source analysis unit 31d to store normal data and abnormal data in the cache memory of the reception abnormality source analysis unit 31d. Referring to the reception status information for all media and all channels that are classified and stored, the media and channels in which reception abnormality has occurred are identified, A: all channels of all media are abnormal, B: there is All the channels in the medium are abnormal, C: some channels are abnormal, and D: all channels in all media are abnormal. (Step S59).

  Then, the receiving apparatus 1 uses the classification information (A to D) classified in step S59 and the reception status information classified into abnormal data stored in the cache memory of the reception abnormality occurrence source analysis unit 31d as the reception abnormality occurrence source. The analysis means 31d outputs the reception abnormality detection information creation means 31e (step S60).

  Subsequently, referring to FIG. 12 (refer to FIGS. 1 to 3 as appropriate), the reception apparatus 1 creates reception abnormality detection information detection information or reception normal information, and requests other reception apparatuses 1 to acquire reception abnormality detection information. The operation up to transmission of will be described. Here, FIG. 12 is a flowchart showing a flow of processing from when the reception device creates reception abnormality detection information detection information or reception normal information and transmits an acquisition request for reception abnormality detection information to another reception device. .

  First, the reception device 1 refers to the attribute information storage unit 54 by the reception abnormality detection information creation unit 31e, and “reception device ID”, “reception device manufacturer”, and “model” which are the attribute information of the reception device 1. And "position information" is acquired as header information (step S70).

  The reception apparatus 1 refers to the classification code classified by the reception abnormality occurrence source analysis unit 31d in step S59 (see FIG. 11) by the reception abnormality detection information creation unit 31e (step S71), and the classification code is not A to C. In this case, that is, in the case of D (No in step S71), the classification code “D” and the header information acquired in step S70 are used as data for transmitting the result of the self-diagnosis of the reception failure to the other receiving devices 1. Is created (step S79), the created reception normal information is recorded in the reception abnormality detection information record DB 56 (step S80), and the process is terminated. That is, when the reception normal information is created, the information is only recorded in the reception abnormality detection information recording DB 56 and is not transmitted to the other reception devices 1.

  On the other hand, when the classification code is A to C (Yes in step S71), A to C classified by the fault self-diagnosis as data for transmitting the result of the self-diagnosis of the reception fault to the other receiving devices 1 Reception abnormality detection information that describes the code of, the information on the medium or channel in which the abnormality has occurred, the header information acquired in step S70, and the list name used to determine the transmission destination of the reception abnormality detection information. It is created (step S72), and the created reception abnormality detection information is recorded in the reception abnormality detection information recording DB 56 (step S73).

Next, the reception device 1 outputs the reception abnormality detection information created in step S72 to the transmission destination determination unit 41 by the reception abnormality detection information creation unit 31e (step S74).
In addition, by adding the attribute information of the receiving device 1 as header information to the reception abnormality detection information and the reception normal information, it can be clarified from which receiving device 1 the information is received.

  The reception device 1 refers to the use list described in the reception abnormality detection information input from the reception abnormality detection information creation unit 31e by the transmission destination determination unit 41, and uses the list stored in the reception device list storage unit 57. Select (step S75). Then, an appropriate transmission destination of the reception abnormality detection information is selected from the receiving devices 1 registered in the selected list (step S76).

Regarding the selection of the receiving device 1 as the transmission destination of the reception abnormality detection information, first, the receiving device 1 installed at a location geographically close to the location at which the receiving device 1 serving as the transmission source is installed is a location information dependent receiving device. Select from the list. If it is determined that the reception failure is not a geographical cause, a reception device 1 of the same model as the reception device 1 is selected from the model-dependent reception device list, and whether the failure is caused by the model of the reception device 1 or not. Check. The description of the usage list in the reception abnormality detection information is for clarifying the purpose of transmission of the reception abnormality detection information.
Note that each list is a list of receiving devices 1 installed in the vicinity and receiving devices 1 of the same model, so that all registered destination devices 1 are not selected from the selected list. The receiving device 1 may determine the transmission destination.

  The reception device 1 determines the reception device 1 selected in step S76 as a transmission destination by the transmission destination determination means 41, and receives the reception abnormality detection information and the address information of these reception devices 1 as transmission destinations as information transmission means. (Step S77). Then, the reception abnormality detection information is transmitted by the information transmitting means 42 to the receiving device 1 specified by the address information via the communication means 23 via the Internet 7 (step S78).

Next, with reference to FIG. 13 (refer to FIGS. 1 to 3 as appropriate), an operation when the receiving apparatus 1 receives information from another receiving apparatus 1 will be described. Here, FIG. 13 is a flowchart showing the flow of processing when the receiving device receives information from another receiving device.
The receiving device 1 transmits / receives three types of information to / from other receiving devices 1 including reception abnormality detection information, reception normal information, and reception failure information.

  When receiving information from the other receiving device 1 via the communication unit 23 by the information receiving unit 43 (step S90), the receiving device 1 confirms the data type of the received information and receives reception abnormality detection information or reception normal information. If it is neither reception abnormality detection information nor reception normal information (No in step S91), it is determined that reception failure information has been received, and the received reception failure information is received as a reception failure. It records in information recording DB55 (step S101), and complete | finishes a process.

  On the other hand, in the case of reception abnormality detection information or reception normal information (Yes in step S91), the reception apparatus 1 records the received reception abnormality detection information or reception normal information in the reception abnormality detection information recording DB 56 by the information reception unit 43. At the same time, it is output to the communication information analyzing means 32a (step S92).

  Next, the receiving apparatus 1 searches the reception abnormality detection information recording DB 56 by the communication information analyzing unit 32a, and is reception abnormality detection information that is considered to be caused by the same failure as the received reception abnormality detection information being recorded? Is investigated (step S94). Here, whether or not it is considered to be caused by the same failure is determined by confirming whether or not the reception device 1 detects the same abnormality in the channel in which the abnormality is detected and the time zone of the measurement time. To do.

  If there is no reception abnormality detection information that appears to be caused by the same failure (No in step S94), the reception device 1 receives the other reception device 1 from the other reception device 1 as a starting point. It is determined that a request for reception abnormality detection information has been received from the device 1, and self-diagnosis of its own receiving device 1 is performed. Then, the receiving device 1 creates reception abnormality detection information or a reception normal report and transmits it to the other receiving device 1 that has made the request. Details of this processing will be described later.

  On the other hand, when there is reception abnormality detection information that appears to be caused by the same failure (Yes in step S94), the reception device 1 uses the communication information analysis unit 32a to receive the reception abnormality detection information. It is determined that it is a response to a request for reception abnormality detection information transmitted to another receiving apparatus 1 from itself, and is stored and accumulated in the cache memory of the reception failure analysis means 32b (step S95).

  In addition, the reception device 1 stores the reception abnormality detection information request to the other reception device 1 by the reception failure analysis unit 32b, and stores it in the cache memory of the reception failure analysis unit 32b for a certain period of time. The received reception abnormality detection information is periodically referred to (step S96), and it is confirmed whether or not the number of accumulated reception abnormality detection information exceeds a predetermined number (step S97). If the predetermined number is not exceeded within the time (No in step S97), it is determined that the failure is an individual failure that has occurred in the receiving apparatus 1 alone. The processing of the receiving device 1 in this case will be described later.

  On the other hand, when the number of reception abnormality detection information exceeds a certain number (Yes in step S97), that is, when a plurality of reception abnormality detection information is received within a certain time, the reception device 1 receives a reception failure. The analysis unit 32b determines that a reception failure has occurred in a range affected by a plurality of receiving devices 1 such as a certain range of areas.

Next, the reception failure analysis unit 32b analyzes whether the reception failure depends on the location information (region) where the reception device 1 is installed or whether the failure depends on the model of the reception device 1 (step). S98).
For example, when a large amount of reception abnormality detection information (classification code: C) is received from a receiving device 1 installed in a geographically close place on a specific channel, a broadcaster 2 whose area is the broadcast area 2 The abnormalities of the basic station transmission facility 3 and the relay station transmission facility 4 are considered. In addition, when a large amount of reception abnormality detection information (classification code: B) is received from the receiving device 1 installed in a geographically close location in all BS digital broadcasting channels, rain attenuation occurs in the area. Possible possibility.

  As a result of the analysis, if it is determined that it depends on the position information (Yes in step S99), the reception device 1 uses the reception failure analysis unit 32b to determine the location of the other reception device 1 that has transmitted the reception abnormality detection information. Identify areas of failure based on distribution. In the case where detailed analysis is not performed, it is possible to specify all areas where the receiving apparatus 1 is installed registered in the position information-dependent receiving apparatus list used for acquiring reception abnormality detection information as a failure occurrence area. .

  Further, in the present invention, since the reception level is measured in units of receiving devices, information having higher resolution than that of AMeDAS can be acquired by spreading the receiving device 1 of the present invention. For this reason, the receiving device 1 can specify the failure occurrence area more precisely.

  On the other hand, when the reception failure analysis unit 32b determines that the failure depends on the model (No in step S99), the reception device 1 specifies that the same model as the reception device 1 is the failure-occurring model ( Step S102).

  Next, with reference to FIG. 14 (refer to FIGS. 1 to 3 as appropriate), the operation of the receiving apparatus 1 after specifying the range of reception failure in step S100 or step S102 shown in FIG. 13 will be described. Here, FIG. 14 is a flowchart showing the processing flow of the receiving apparatus after specifying the range of reception failure.

The reception device 1 uses the reception failure analysis unit 32b based on the analysis result to indicate that the reception failure occurrence status depends on the position information or the model, and the broadcaster 2 or the reception device manufacturer 6 Appropriate inquiry destination information is output to the video signal processing means 18 and the audio signal processing means 19, and the message and information are reproduced so as to be viewable by the display 20 and the speaker 21 and presented to the viewer (step S110).
Note that the processing in step S110 may be executed in parallel with the processing in step S111 and later described later.

  The reception apparatus 1 aggregates the reception abnormality detection information stored in the cache memory of the reception failure analysis unit 32b by the reception failure information creation unit 32c. Then, the reception device 1 acquires the attribute information of the reception device 1 as the transmission source information from the attribute information storage unit 54 by the reception failure information creation unit 32c, and adds the reception failure information to the aggregated reception abnormality detection information. It is created and recorded in the reception failure information recording DB 55 (step S111), and the created reception failure information is output to the transmission destination determination means 41 (step S112).

Then, the receiving apparatus 1 uses the transmission destination determining means 41 to select the transmission destination as the broadcaster 2 of the corresponding channel in the case of a location information-dependent failure, or the receiving device manufacturer of the model in the case of a model-dependent failure. determined in 6, the received reference to the fault information notification destination storage means 58, the broadcaster 2 is address information or receiving device manufacturer 6 of the fault information collection apparatus X ₁ to operate the fault information collection apparatus X ₂ for operating respectively Address information is acquired (step S113).

Furthermore, the receiving device 1 has received another receiving device 1 listed as a failure generator in the receiving failure information by the transmission destination determining means 41, that is, another receiving device that has acquired the receiving abnormality detection information used for analyzing the receiving failure. 1 is also determined as the transmission destination of the reception failure information, and the address information of the reception apparatus 1 determined as the transmission destination is obtained by referring to the corresponding list stored in the reception apparatus list storage means 57 (step S114). .
Here, as the receiving device 1 that is the transmission destination of the reception failure information, only the receiving device 1 that has transmitted the reception abnormality detection information is used, and the receiving device that has transmitted the normal reception information is not included in the transmission destination, so that the transmission is normally performed. The viewer who is receiving the information is not hindered from viewing the broadcast program by the presentation of information.
In addition, the process of step S114 and the process of step S113 may replace the order to perform, and may be implemented in parallel.

When the transmission destination is determined, the reception device 1 causes the transmission destination determination unit 41 to output the reception failure information and the address information of the transmission destination acquired in steps S113 and S114 to the information transmission unit 42 (step S115). , it transmits the Internet 7 through the communication unit 23 to the receiving apparatus 1 specified by the address information fault information collection apparatus X ₁ or fault information collection device X ₂ and other via (step S116).

  Next, referring to FIG. 15 (refer to FIGS. 1 to 3 as appropriate), the receiving device after determining that the receiving failure is an individual failure occurring in the single receiving device 1 in step S97 shown in FIG. The operation of No. 1 will be described. Here, FIG. 15 is a flowchart showing the processing flow of the receiving apparatus after it is determined that the receiving fault is an individual fault occurring in the receiving apparatus alone.

  The reception device 1 refers to the reception failure information notification destination storage unit 58 by the reception failure analysis unit 32b, acquires inquiry information of the reception device manufacturer 6 (step S130), and a message indicating that the failure is a failure of the reception device alone. The obtained inquiry information is output to the video signal processing means 18 and the audio signal processing means 19, and the message and information are reproduced so as to be viewable by the display 20 and the speaker 21 and presented to the viewer (step S131).

  Next, referring to FIG. 16 (refer to FIGS. 1 to 3 as appropriate), after determining that a request for reception abnormality detection information has been received from another receiving device 1 in step S97 shown in FIG. The operation of the receiving device 1 will be described. Here, FIG. 16 is a flowchart showing a processing flow of the receiving apparatus after receiving a request for reception abnormality detection information from another receiving apparatus.

  The process shown in FIG. 16 is a reception state confirmation process based on a request (request) from another receiving apparatus 1. Processing is executed when reception abnormality detection information is received from another receiving device 1 and the receiving device 1 has not confirmed the abnormality. For example, the reception state of the channel in which the abnormality described in the reception abnormality detection information has occurred is grasped at the time when the abnormality occurred in the other receiving device 1 because another channel was selected in the receiving device 1. This is the case when there was no.

The reception device 1 searches the reception state information record DB 51 by the communication information analyzing unit 32a, and refers to the reception state information at the abnormality detection time described in the reception abnormality detection information transmitted from the other reception devices 1 (step). S150).
In the receiving device 1 of the present embodiment, the reception level measurement unit 31a periodically measures the reception level of the channel being viewed and stores it as reception status information in the reception status information recording DB 51. The reception status information measured at the same time as or close to the detected abnormality time can be referred to.

  Then, the receiving device 1 refers to the media and channel information of the corresponding reception status information by the communication information analyzing unit 32a, and the media and channel described in the reception abnormality detection information transmitted from the other receiving device 1 It is confirmed whether they match (step S151). If it is the same channel (Yes in step S151), it is known that there is no corresponding reception abnormality detection information record in the reception abnormality detection information record DB 56 (No in step S94 (see FIG. 13)). ) Judge that there is no abnormality. Then, the reception apparatus 1 acquires the attribute information of the reception apparatus 1 as header information with reference to the attribute information storage means 54 by the reception abnormality detection information creation means 31e (step S158), and the classification code “D” The received header information is added to create reception normal information (step S159), and it is recorded in the reception abnormality detection information recording DB 56 (step S160).

On the other hand, if they are not the same channel (No in step S151), if the user is viewing the broadcast program, the receiving device 1 selects the channel that is being viewed (selected) by the channel selection information detecting means 31b. Confirmation (step S152), and within a range that does not hinder the viewing, select the media and channel in which the abnormality described in the received reception abnormality detection information is selected (step S153).
If the channel selection hinders the user's viewing, the process may be suspended or interrupted. Further, when the receiving apparatus 1 is equipped with a plurality of tuners of the same type, if the tuning of the tuner used for viewing is kept as it is and the other tuner is tuned to a desired channel, The reception state can be investigated without disturbing the user's viewing.

  Subsequently, the reception apparatus 1 performs a self-diagnosis of the reception state for all media and all channels including the selected channel by the reception abnormality source analysis unit 31d and the like (step S154). This step S154 is a process corresponding to step S210 composed of steps S52 to S61 indicated by a broken line portion in FIG. 11, and thus detailed description thereof is omitted.

  Subsequently, the reception apparatus 1 creates reception abnormality detection information or reception normal information by adding necessary information to the classification code determined by the self-diagnosis in step S154 by the reception abnormality detection information creation unit 31e (step S155). . Step S155 is a process corresponding to step S220 including steps S70 to S73, step S79, and step S80 indicated by the broken line in FIG. 12, and thus detailed description thereof is omitted.

  Next, the receiving device 1 uses the destination determination unit 41 to receive the address information of the other receiving device 1 that is the transmission source of the reception abnormality detection information received in step S90 (see FIG. 13) and the reception created in step S155. The abnormality detection information or the reception normal information or the reception normal information created in step S160 is output to the information transmission means 42 (step S156), and another reception designated by the address information via the Internet 7 via the communication means 23. It transmits to the apparatus 1 (step S157).

Note that the reception abnormality detection information created by examining the reception state in response to a request from another receiving device 1 is transmitted only to the other receiving device 1 of the request source, and other receiving devices 1 and failure information collection are performed. It is not transmitted to the device X ₁ and the failure information collection device X ₂ .

  As described above, the receiving device 1 according to the embodiment of the present invention generates a receiving failure by determining the receiving failure in the receiving device 1 and presenting it to the viewer by the cooperative operation of the plurality of receiving devices 1. It is possible to quickly and surely notify the viewer who is watching the broadcast program being informed about the status of the failure. This not only reduces inquiries about the reception failure to the broadcaster 2, but also improves the satisfaction of the viewer with the broadcast.

In addition, the situation grasp of reception failure, running only in the receiving apparatus 1 without the intervention of the fault information collection apparatus X ₁ of broadcasters 2, only when the reception failure affect a wide area, the receiving device the reception status 1 And broadcaster 2 is notified. For this reason, even when a large-scale reception failure occurs, a large number of reception devices 1 are connected to a device such as the failure information collection device X ₁ that is a server for collecting failure conditions installed by the broadcaster 2. information can be prevented from being congested, such as fault information collection apparatus X ₁ can be reduced server access load.

  Further, since the reception level of the broadcast wave is measured not by the dedicated device but by the reception device 1, the broadcaster 2 can easily grasp the reception status at the place where the viewer enjoys the broadcast service and receive the broadcast wave. Taking into account the number of popularized devices 1, it is possible to grasp the reception situation in a fine area. As a result, the broadcaster 2 can perform a more detailed analysis and provide an answer to the reception failure inquiry. In addition, the phased array antenna beam intensification technology, which is one of the countermeasures against rain attenuation in satellite broadcasting, can provide information with higher resolution than the current AMeDAS data, making it more efficient and reliable. Can be realized.

FIG. 1 is a block diagram showing a configuration of a reception failure analysis system. FIG. 2 is a block diagram showing the configuration of the receiving apparatus according to the embodiment of the present invention. FIG. 3 is a block diagram showing detailed configurations of the failure information processing means, the communication information processing means, and the storage means. FIG. 4 is a diagram illustrating an example of reception state information data. FIG. 5 is a diagram illustrating an example of data of reception abnormality detection information. FIG. 6 is a diagram illustrating an example of data of normal reception information. FIG. 7 is a diagram illustrating an example of reception failure information data. FIG. 8 is a block diagram illustrating a configuration of the failure information collection apparatus. FIG. 9 is a sequence diagram illustrating a flow of transmission / reception of information regarding failure information between a plurality of reception devices and a failure information collection device. FIG. 10 is a flowchart showing the flow of processing until the receiving apparatus detects an abnormality in the reception state and prompts the viewer to determine whether or not to perform self-diagnosis for all media and all channels. FIG. 11 is a flowchart showing a flow of self-diagnosis processing by the receiving apparatus. FIG. 12 is a flowchart showing a flow of processing from when the reception device creates reception abnormality detection information or reception normal information and transmits a reception abnormality detection information acquisition request to another reception device. FIG. 13 is a flowchart showing a processing flow when the receiving device receives information from another receiving device. FIG. 14 is a flowchart showing the processing flow of the receiving apparatus after specifying the range of reception failure. FIG. 15 is a flowchart illustrating a processing flow of the receiving apparatus after it is determined that the receiving failure is an individual failure that has occurred in the receiving apparatus alone. FIG. 16 is a flowchart showing a processing flow of the receiving apparatus after receiving a request for reception abnormality detection information from another receiving apparatus.

Explanation of symbols

1, 1A, 1B, 1C Receiving device 1a, 1b, 1c, 1d Receiving device group 2 Broadcasting company 3 Core station transmission facility 4 Relay station transmission facility 5 Broadcasting satellite 6 Receiving device manufacturer 7 Internet 11 Terrestrial digital broadcasting Tuner 11a Receiving antenna 12 BS / 110 degree CS digital broadcasting tuner 12a Receiving antenna 13 OFDM demodulating means 14 TC-8PSK demodulating means 15 Descrambler 16 B-CAS card 17 MPEG decoder 18 Video signal processing means 19 Audio signal processing means 20 Display ( Presenting means)
21 Speaker (presentation means)
22 Clock 23 Communication unit 24 Control unit 25 External device input / output unit 30 Fault information processing unit 31 Reception abnormality determination unit 31a Reception state measurement unit 31b Channel selection information detection unit 31c Reception abnormality detection unit 31d Reception abnormality generation source analysis unit 31e Reception abnormality Detection information creation means 32 Reception failure determination means 32a Communication information analysis means 32b Reception failure analysis means 32c Reception failure information creation means 40 Communication information processing means 41 Destination determination means 42 Information transmission means 43 Information reception means 50 Storage means 51 Reception state information Record DB
52 Broadcast pause information storage means 53 EPG storage means 54 Attribute information storage means 55 Reception failure information record DB
56 Reception abnormality detection information record DB
57 receiver list storage means 58 reception failure information notification destination storage means 59 reception failure correspondence data storage means 101 communication means 102 reception failure information storage DB
103 reception failure information combining unit 104 reception failure information analysis unit 105 reception failure information notification unit 106 external device input / output unit 107 display 108 speaker 109 failure DB
110 Information Display Unit 111 DB Search Unit 112 Information Input Unit 113 Reception Status Information Acquisition Request Unit 114 Reception Status Information Storage DB
115 Reception failure handling data storage DB
120 broadcast program transmitting apparatus 130 homepage creation device 140 broadcast facility failure communication device D1 reception state information D2 receiving error detection information D3 received normal information D4 receives failure information S received failure analysis system _X, X 1, _{X 2} fault information collection apparatus

Claims (9)

A receiving device comprising a communication means for analyzing the cause of a reception failure when a broadcast reception failure occurs,
A reception abnormality determination means for detecting whether there is an abnormality in the reception state of the broadcast and creating reception abnormality detection information including information indicating whether there is an abnormality in the reception state;
Receiving device list storage means for storing a list of other receiving devices in advance ;
When detecting a receiving error before the previous SL receives the abnormality judgment means is required to receive the abnormality detection information from the other receiving device from the other receiving apparatus registered in the list, receives the abnormality detection of the other receiving devices Other reception abnormality detection information that is information is acquired via the communication unit, and when reception abnormality detection information is requested from another reception device via the communication unit, the reception abnormality detection information of the reception device Communication information processing means for transmitting the self-receiving abnormality detection information to the other receiving device of the request source via the communication means;
Analyzing the acquired other reception abnormality detection information, and when the other reception abnormality detection information indicating that there is an abnormality exceeds a predetermined number, the own reception abnormality detection information and the acquired other reception abnormality detection information A reception failure determination means for creating aggregated reception failure information;
Further comprising
The receiving apparatus characterized in that the communication information processing means recovers a failure by transmitting / receiving insufficient data to / from another receiving device based on the reception failure information.   The communication information processing means requests the reception failure detection information from another receiving device and acquires the reception failure information generated by the reception failure determination means only when the other reception abnormality detection information is acquired. The receiving apparatus according to claim 1, wherein the receiving apparatus transmits the information to a collecting apparatus for collecting failure information via the communication unit. The receiving device list storage means stores in advance a position information-dependent receiving device list that is a list of other receiving devices installed in a predetermined area including the location where the receiving device is installed,
When the reception abnormality determining unit detects a reception abnormality before requesting reception abnormality detection information from another receiving device, the communication information processing unit is configured to receive another receiving device registered in the position information dependent receiving device list. The receiving apparatus according to claim 1, wherein the other reception abnormality detection information is acquired from the communication means.   The reception failure determination unit analyzes the acquired other reception abnormality detection information, and when the other reception abnormality detection information indicating that there is an abnormality exceeds a predetermined number, the own reception abnormality detection information and the acquired In addition to creating reception failure information in which the other reception abnormality detection information is aggregated, the communication information processing means includes a failure information collection device that collects reception failure information related to the reception device at the position where the reception failure has occurred. The receiving apparatus according to claim 3, wherein transmission is performed via the communication unit. The receiving device list storage means stores in advance a model-dependent receiving device list that is a list of other receiving devices of the same model as the receiving device,
When the reception abnormality determining unit detects a reception abnormality before requesting reception abnormality detection information from another receiving device, the communication information processing unit receives the information from another receiving device registered in the model-dependent receiving device list. 5. The reception apparatus according to claim 1, wherein other reception abnormality detection information is acquired via the communication unit.   The reception failure determination unit analyzes the acquired other reception abnormality detection information, and when the other reception abnormality detection information indicating that there is an abnormality exceeds a predetermined number, the own reception abnormality detection information and the acquired In addition to creating reception failure information in which the other reception abnormality detection information is aggregated, the communication information processing means includes a failure information collection device that collects reception failure information related to a reception device of a model in which the reception failure has occurred. The receiving apparatus according to claim 5, wherein the receiving apparatus transmits the data via the communication unit.   The communication information processing means, when detecting an abnormality in the reception state by the reception abnormality determining means, for recovering a failure held by another receiving apparatus having normal reception based on the other reception abnormality detection information The receiving apparatus according to claim 1, wherein the data is acquired.   The communication information processing means obtains information of another receiving device in which no failure has occurred from a failure information collecting device that collects the reception failure information, and receives data for failure recovery from the other receiving device. The receiving apparatus according to claim 7, wherein:   9. The present invention further comprises presenting means for presenting information indicating that a reception abnormality has been detected or analysis contents of a reception failure when the reception abnormality is detected or when the reception failure is analyzed. The receiving device according to any one of the above.

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