JP2009077117A - Communication apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To take countermeasures to cope with respective changes of installations by providing a communication apparatus such as an access point with a sensor to detect the variation of an installation state. <P>SOLUTION: A central control part 28 confirms whether the detection result of the installation state has been sent from a sensor 32 or not and, in the case that it has been sent, confirms whether the installation state of the communication apparatus has been changed or not and, in the case that it has been changed, confirms whether an electric wave state is abnormal or not. When there is a problem in the electric wave state, the central control part 28 controls a radio control part 27 to perform recovery processing by reducing transmission power to suppress radio interference with peripheral radio communication areas or changing the increase of transmission power, antenna directivity, etc. so that the electric wave state is returned to that in an initial radio communication area as far as possible. When recovery is impossible, information useful for maintenance is provided. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to failure detection of a communication device having a communication function only by a single or a plurality of wireless communication functions, only a wired communication function, or a combination thereof. In particular, as wireless communication, wireless LAN, WiMAX, BlueTooth, Cellular system, infrared communication, Ethernet (10BaseT, 100BaseT, 1000BaseT), PSTN, DSL, optical fiber, etc. can be applied as wire communication, and it is used not only as a wireless LAN access point but also as a cellular femtocell It is useful for small base stations, WiMAX / WLAN converters, mobile WiMAX CPE (Customer Premises Equipment), and the like.

  Conventionally, taking a wireless LAN as an example, when a communication system using a wireless LAN is installed in an office, home, etc., there is a case where the reach of radio waves cannot be covered by a single access point. In that case, it is necessary to use a plurality of access points and set the proper installation position and conditions in consideration of radio wave interference, such as the radio wave reach, transmission output, frequency, antenna directivity, and the like.

  However, even if it is installed at an appropriate installation position and installation conditions, the position may move for some reason. FIG. 14 shows an example in which the installation state of the communication device is changed.

  As shown in FIG. 14A, communication devices 101a, 101b, 101c, and 101d as access points have wireless communication areas 102a, 102b, 102c, and 102d, respectively. As shown in FIG. 14B, it is assumed that the communication device 101d has been changed from a previously installed position. In this case, the initial wireless communication area 102d has moved to the wireless communication area 102e, resulting in a dead area 105. Further, since the communication device 101d is approaching the adjacent communication device 101c, if the communication device 101d and the communication device 101c use a close frequency channel, a radio wave interference area also occurs, and another communication device Will adversely affect the communication range.

In order to cope with such a radio wave interference, for example, there is a technique disclosed in Patent Document 1. In this case, when a communication failure is detected at the access point, the access point is switched to an alternative access point to avoid the communication failure.
JP 2004-15287 A

  However, with the technique described in Patent Document 1, the problem of the access point can be detected from the radio interference, but it is not known what caused it. In particular, the installation state problem as shown in FIG. 14 cannot be detected at all. In the case of a physical failure of equipment such as a fall of an access point or disconnection of a wired cable, it is unlikely that the problem can be solved fundamentally by itself. In order to prevent the effects of communication failures to a minimum, it is necessary to quickly analyze the failure state and take quick and fundamental measures.

  Recently, access points have also been reduced in size and weight, and there is a greater risk of an installation position, angle, or tipping over if an object is touched in the installed state. In addition, there may be a radio wave obstacle around the antenna.

  In addition, it is necessary to provide a backup access point in the service cell, and it is necessary to install the access point twice.

  Therefore, the present invention provides a communication device that detects a change in the installation state by providing a sensor that detects the installation state, and can cope with the change in each installation, and a communication system using the communication device. For the purpose.

The present invention includes a single or a plurality of wireless communication means and a single or a plurality of wired communication means, and a communication device capable of performing communication by combining each of the wireless communication means and the wired communication means.
It is characterized by comprising detection means for detecting the installation state of the communication device, and installation failure determination means for determining an installation failure from the detection result of the detection means.

  When the installation failure determination unit determines that an installation failure has occurred from the detection result of the detection unit, the installation failure is notified to the user by light, sound, and character information.

  In addition, when the installation failure determination unit determines that an installation failure has occurred from the detection result of the detection unit, the installation failure information determined by the installation failure determination unit is stored in the other using a single or a plurality of wireless communication units. The communication device is notified.

  In addition, when the installation failure determination unit determines that an installation failure has occurred from the detection result of the detection unit, the installation failure information determined by the installation failure determination unit is obtained by using other single or plural wired communication units. The communication device is notified.

  Further, when the installation state determination means determines that an installation failure has occurred from the detection result of the detection means, the installation failure information determined by the installation failure determination means is transmitted to a single or a plurality of wireless communication means, Each of the plurality of wired communication means is combined and notified to another communication device.

  In addition, a storage unit that stores a preset reference value for determining the set failure is further provided, and the installation failure determination unit compares the determination reference value stored in the storage unit with the detection value detected by the detection unit. It is characterized in that it is an installation failure.

  In addition, after determining that the installation failure determination means has caused an installation failure, which communication means has failed among the single or multiple wireless communication means and the single or multiple wired communication means Searching means for searching for communication failure is further provided, communication means that does not cause communication failure is selected based on the search result of the searching means, and which is the communication means that causes installation failure information and communication failure. The communication failure information shown is notified to other communication devices.

  Further, when the installation failure determining means determines that an installation failure has occurred, the communication function of each of the single or plural communication means is controlled.

  Further, when it is determined from the installation failure information and the communication failure information that a failure has occurred in the wireless communication means, the transmission output of the wireless communication means is varied.

  Here, the detection means may be a direction sensor, an acceleration sensor, a gravity sensor, or a tension sensor. The tension sensor detects the tension of the power cable and the wired communication cable.

  The detecting means may detect a return loss of the transmitting antenna of the wireless communication means.

  The present invention is a communication system characterized in that a network is configured by using a plurality of the communication devices. A management control device that performs centralized management by connecting a plurality of communication devices constituting a network by wired communication may be provided. In addition, it is preferable that another communication device that has received the failure notification from the communication device in which the failure has occurred relays the failure notification using a communication unit in which the failure included in the communication device is not detected.

  According to the communication apparatus of the present invention, it is possible to know that the installation state has been changed for some reason from the state in which it is installed under the optimum conditions. Furthermore, it is possible to take a prompt action by notifying information on the communication means in which a failure has occurred. It is possible to minimize the loss of the service area due to the change of the installation state and the deterioration of the communication quality due to the increase of interference. In addition, by detecting the return loss of the antenna, it is possible not only to monitor the normal connection of the antenna, but also to monitor whether there is anything that affects radio wave radiation around the antenna. It is effective for communication systems used for home control.

The best mode for carrying out the present invention will be described in detail with reference to the drawings.
Note that the present invention is not limited to these embodiments, and can be implemented in various modes without departing from the spirit of the present invention.

<First Embodiment>
FIG. 1 is a block diagram showing an embodiment of a communication apparatus according to the present invention.
The communication device 11 of the present embodiment includes a wireless communication unit, a wired communication unit, and a sensor unit as main components, and includes an antenna 21, a transmission / reception switching unit 22, a PA (Power Amp) 23, a transmission unit 24, and an LNA (Low). Noise AMP) 25, receiving unit 26, wireless control unit 27, central control unit 28, wired communication unit 29, wired control unit 30, power supply 31, sensor 32, and display unit 36. The central control unit 28 controls each unit. The transmission switching unit 22 may use a duplexer (details will be described later). For convenience of explanation, only a single wireless communication means and a single wired communication means are shown.

  A wireless LAN such as 802.11 / a / b / g will be described as an example of wireless communication, and a wired LAN such as 10BASE-T or 100BASE-T will be described as an example of wired communication. However, the present invention is not limited to this. .

  Referring to the wireless communication in FIG. 1, data according to communication control sent from the central control unit 28 is modulated into a baseband signal by the wireless control unit 27. The modulated baseband signal is converted into a band limit and a radio frequency signal by the transmission unit 24, amplified by the PA 23, and radiated as a radio wave from the antenna 21 through the terminal a from the terminal b of the transmission / reception switcher 22. . The degree of amplification of PA23 can be varied.

  On the other hand, the radio wave received by the antenna 21 is input from the terminal a of the transmission / reception switch 22 to the LNA (Low Noise Amp) 25 via the terminal c and amplified by low noise. The amplified received signal is band-limited, demodulated, and frequency-converted by the receiving unit 26 and input to the radio control unit 27 as a baseband signal. The amplification factor of the low noise amplification by the LNA 25 is variable. The wireless control unit 27 sends received data according to the communication protocol to the central control unit 28.

Next, wired communication will be described.
For wired communication, packet communication such as wired LAN such as 10BASE-T or 100BASE-T is used, and the wired communication unit 29 connected to the external wired LAN is connected to the wired LAN frame according to the control from the wired control unit 30. Send and receive signals.

  From the received frame signal received from the external wired LAN, necessary control commands and data information are taken out by the wired communication unit 29 under the control of the wired control unit 30, and the data information is input to the central control unit 28. On the other hand, transmission data output from the central control unit 28 transmits necessary control commands and data information to the wired LAN as transmission frame signals in the wired communication unit 29 according to the control of the wired control unit 30. The power supply 31 generates and supplies power necessary for each block from an external commercial power supply.

  FIG. 2 is a block diagram illustrating a configuration example of the central control unit 28. The central control unit 28 includes a clock 41, a CPU 42, a ROM 43, a RAM 44, a sensor I / F 45, and a nonvolatile memory 46. The ROM 43 stores programs for system control, wireless control, and wired control. The CPU 42 executes the program based on the Clock 41. The RAM 44 is used as a work memory for program execution. The non-volatile memory 46 as a storage unit stores a reference value for determining a setting failure, a wireless communication failure, and a wired communication failure.

  As will be described in detail later, the central control unit 28 functions as a setting failure determination unit, and detects setting state detection data from the sensor 32 and a reference value for determining a preset setting failure from the nonvolatile memory 46. Information is read and compared, and an abnormality in the installation state is determined from the information comparison result, and installation failure information is notified. Although the installation failure information depends on the type of the sensor 32 to be mounted, it can be considered that the installation position has moved, the radio wave radiation efficiency from the antenna has decreased, the cable has been pulled, and the like.

  Furthermore, when a failure occurs in the wired communication unit (for example, disconnection of the communication cable, etc.), the wired control unit 30 cannot receive the normal response or the received signal is interrupted with respect to the signal from the wired communication unit 29. Thus, it is possible to determine that a failure has occurred in wired communication. On the other hand, the wireless control unit 27 can similarly determine that a failure has occurred in wireless communication. Therefore, when the wired control unit 30 determines that there is a wired communication failure, the central control unit 28 is notified of communication failure information indicating the wired communication failure. Similarly, when the wireless control unit 27 determines that there is a wireless communication failure, it notifies the central control unit 28 of communication failure information indicating the wireless communication failure.

  In addition, the central control unit 28 performs display corresponding to the detected installation failure information and communication failure information on the display unit 36 and notifies the user. At this time, the detection data of the sensor 32 and detailed data of failure information are displayed. In addition, as a simple notification means regarding such a failure, although not shown, a light emitting element such as an LED capable of blinking light, a simple display capable of displaying characters such as “installation failure”, a pronunciation There is a buzzer that can warn you. . The same applies to a plurality of wired communication means and wireless communication means or a combination thereof.

  Here, various sensors 32 that detect the installation state of the communication device 11 will be described. First, the acceleration sensor will be described.

  Most of the other-axis acceleration sensors that have been developed for consumer devices are MEMS (micro eletro mechanical systems) sensors that make an acceleration detection mechanism by a semiconductor process, and can be downsized compared to other methods. When this sensor is used, acceleration, movement, inclination, etc. can be detected. Examples of the acceleration sensor include a piezoresistive type, a capacitance type, and a heat detection type. An example of a piezoresistive type will be described. FIG. 3 shows an overview of the acceleration sensor.

  The acceleration sensor 50 is a MEMS semiconductor sensor chip, and is composed of a dedicated ASIC for amplifying and correcting the output signal of the sensor chip, and these are mounted on a package.

  The acceleration sensor 50, which is a sensor chip, has a structure including a frame 51, a weight 52, and a beam 53 using silicon as a base material and a micromachine technique. A piezoresistor 54 is disposed on this beam. The piezoresistor 54 is an element in which when a mechanical external force is applied to the crystal, the crystal lattice is distorted, and the number of carriers and mobility in the semiconductor change to change the resistance value.

  When acceleration is applied to the sensor chip 50, the mass moves and distortion occurs on the beam 53. This distortion causes a stress in the piezoresistor 54 disposed on the beam 53, and the resistance value changes.

FIG. 4A is a diagram showing that acceleration is applied in the acceleration direction X or Y, the weight 52 is displaced, the beam 53 is deformed, and the resistance value of each piezoresistor 54 is changed.
The resistance value of the piezoresistor 54 in the contracted state decreases, and the resistance value of the piezoresistor 54 in the expanded state increases.

  FIG. 4B is a diagram illustrating a mechanism in which the acceleration 52 is applied in the acceleration direction Z and the weight 52 is displaced. The operation of each part is the same as in FIG.

FIG. 5 shows the arrangement of piezoresistors.
Rx1, 2, 3, 4 of the piezoresistor 54 that detects acceleration in the X-axis direction, Ry1, 2, 3, 4 of the piezoresistor 54 that detects acceleration in the Y-axis direction, and acceleration in the Z-axis direction are detected. Rz 1, 2, 3 and 4 which are piezoresistors 54 are arranged on the beam 53.

  The acceleration information is output as a voltage proportional to the acceleration by taking out the change of the piezoresistor 54 as an electrical signal by a bridge circuit, amplifying and correcting it by a dedicated ASIC. This is shown in FIG.

When acceleration is applied in the X-axis / Y-axis and Z-axis directions, the resistance value of the piezoresistor 54 in the contracted state decreases and the resistance value of the piezoresistor 54 in the expanded state increases, so the Wheatstone bridge By configuring the circuits 55, 56 and 57, the acceleration is detected as a voltage change. This sensor can detect not only dynamic acceleration but also gravity and tilt.
In this way, the acceleration sensor can determine the change amount and the change direction of the installation position.

  Note that a sensor using a simpler mechanical switch may be used as long as it detects only the fall or inclination of the communication device.

  When the power cable 20 and the wired LAN cable 21 are of a take-up type, the installation state of the central relay device can also be detected by detecting the tension. FIG. 7 shows an example of a winding type case.

  According to FIG. 7, the winding mechanism 61 includes a bobbin 62, a ratchet / brake mechanism 63, and a winding shaft (with a winding spring) 64. The power cable 33 or the wired LAN cable 34 is wound around a bobbin 62, and the end is pulled out via a biaxial rotation angle mechanism. In addition, the roller 65 may be provided as a guide so that the drawer is smooth.

  The take-up shaft 64 has a spring structure such as a spring, and when tension is applied to pull out the cables 33 and 34, the bobbin 62 rotates counterclockwise and the spring is also taken up. The cam 66 has a concavo-convex structure such as a gear, and rotates together with the bobbin 62.

  The ratchet / brake mechanism 63 has a ratchet structure that is pressed against the uneven structure of the cam 66. At the position where the power cable 33 or the wired LAN cable 34 is pulled out, it is locked by the ratchet 63 and fixed once. When the lock of the ratchet 63 is released, the bobbin 62 rotates clockwise by the wound spring force and automatically winds the cables 33 and 34. Alternatively, the winding mechanism 63 may have a drag (stepless brake) function as provided in a fishing reel.

  In such a winding mechanism 63, the bobbin 62 is provided with a tension sensor so that the tension with which the cables 33 and 34 are pulled out can be detected. This rotation sensor can be realized by a rotary encoder using a photo interrupter used for a PC mouse or the like. The tension sensor may have a simple switch structure. Further, the tension applied to the roller may be detected.

Furthermore, the structural example of a winding type mechanism is shown in FIG.
As shown in FIG. 8, a winding mechanism 71 capable of winding the power cable 33 and the wired LAN cable 34 connected to the communication device 11 once is provided. The winding mechanism 71 is connected to a tension sensor and can detect the tension of the wound cable.
In this way, the change amount and change direction of the installation position of the communication device can be detected by the tension sensor.

  FIG. 9 illustrates a functional block diagram of a communication device 81 according to the present embodiment, which is different from the communication device 11 of FIG. The description of the same components as in the first and second embodiments is omitted. A difference from the communication apparatus of FIG. 1 is that a diplexer 35 is used instead of the transmission / reception switching unit 22. The diplexer 35 also serves as the sensor 32.

FIG. 10 shows a configuration example of the diplexer 35.
As shown in FIG. 10, the diplexer 35 includes a circulator 91, a detector 92, and a SW 93. The transmission power transmitted from the PA 23 is input to the circulator 91 from the terminal P1, transmitted to the terminal P2 with low loss, and radiated from the antenna 21. On the other hand, the received radio wave received by the antenna 21 is input to the terminal P2 of the diplexer 35, guided to the terminal P3 with low loss, and input to the LNA 25.

  When the antenna 21 is not properly matched or an object that affects radio wave radiation around the antenna 21 approaches, the impedance of the antenna 21 changes, and reflection like a dotted line occurs. The ratio of the incident power to the antenna 21 and the reflected power is expressed as a return loss, and indicates 0 dB when all the power is returned after total reflection, and −∞ dB when all the power is not returned. When the return loss value is small, it means that the antenna is matched at that frequency.

During the transmission operation, when the terminal a-b of the SW 93 is closed, the transmission reflected power is transmitted from the terminal P2 of the circulator 91 in the direction of P3, and is detected by the detection unit 92 via the terminal a-b of the SW 93. Then, it is led to the central control unit 28 as a DC voltage (DET). When the reception and transmission operations are performed in a complementary manner, the terminals a and b of the SW 93 are opened during the reception operation, so that the degree of coupling of the detector 92 is reduced and the influence on the reception power Rx can be minimized. . When performing the transmission operation and the reception operation at the same time, the coupling of the detection unit 92 should be minimized and the difference from the superimposed received power may be taken.
Thus, the diplexer 35 can detect antenna abnormality and obstacles around the antenna.

  The sensor described above is only an example, and any sensor that can detect the installation state of the communication device may be used. For example, there are a motion sensor (installation position change detection), a gravity sensor (installation position change detection), a direction sensor (installation change direction), and the like.

  Hereinafter, a process in which the communication device 11 detects an installation state abnormality and notifies the installation failure information and the communication failure information will be described. FIG. 11 is a flowchart showing state detection and notification processing of the communication device 11.

  The central control unit 28 checks whether the detection result of the installation state is sent from the sensor 32 (step S1), and if it is sent, compares it with the reference value information set in advance and stored in the nonvolatile memory 46. (Step 2), it is confirmed whether the installation state has changed (Step S3), and if it has changed, installation fault information is displayed on the display unit 36 (Step 4).

  By displaying installation fault information, it is not only easy to identify which fault has occurred among multiple communication devices, but it is possible to quickly perform subsequent maintenance by obtaining fault information. It becomes possible. The operation after the detection in step 1 may use interrupt processing. If all of Steps S1 to S3 are No, the process returns to Step S1.

  If it is determined that the installation state has changed (step S3; Yes), the installation failure information is displayed on the display unit 36 (step 4). This display is useful for maintenance when communication failure occurs in both wired and wireless communication and failure information cannot be notified.

  Next, the central control unit 28 functions as a communication failure search unit, and determines which communication unit has a failure (step 5). Here, when a failure occurs in the wired communication unit 29 as described above (for example, disconnection of the communication cable), the wired control unit 30 stops the reception signal or cannot receive a normal response. It is possible to know that a failure has occurred in communication. On the other hand, similarly, the wireless control unit 27 can know that a failure has occurred in wireless communication.

  If the communication failure is wireless communication (step 5; wireless), the central control unit 28 notifies other communication devices of wireless communication failure information using wired communication, and then displays the communication failure on the display unit 36. Information is displayed (step 12). Further, in order to minimize the influence on the communication apparatus that performs other wireless communication, the wireless communication function is restricted (step 13). Specifically, the transmission output of PA 23 is reduced or a blocking operation is performed.

  On the other hand, when it is determined that a communication failure has occurred in the wired communication means (step 5; wired), the central control unit 28 determines whether there is another effective wired communication means if it has a plurality of wired communication means. (Step 6). If there is another effective wired communication means (step 6; Yes), notification of wired communication failure information is performed via the effective wired communication means in which no failure has occurred (step 9), and the display unit 36 is notified. Communication failure information is displayed (step 10). The communication failure information in this case may include information on a wired communication unit in which a failure has occurred and information on an effective wired communication unit.

  If it is determined in step 6 that there is no valid wired communication means (step 6; No), the wireless communication means is notified of the wire communication failure information to other communication devices (step 7), and the display unit 36 is displayed. The communication failure information is displayed on the screen (step 8). Maintenance recovery processing is performed based on the installation failure information displayed on the display unit 36 and the installation failure information and communication failure information notified via the respective communication means (step 14). Any failure caused by physical factors of the communication device will require maintenance by a person.

FIG. 12 is an explanatory diagram illustrating an example in which the communication device can perform recovery processing by itself. As in FIG. 14B, it is assumed that there are communication devices 11a, 11b, 11c, and 11d, and the installation position of the communication device 11d has moved in a direction approaching the communication device 11c.
In addition, although there are four communication apparatuses, this is set as an example and is not limited to this.

  In this state, the wireless communication areas of the communication devices 11a, 11b, 11c, and 11d are 12a, 12b, 12c, and 12e. When the communication device 11d was at the original position, it was the wireless communication area 12d, but the wireless communication area moved from 12d to 12e with the movement. Therefore, when the communication device 11c performs recovery processing by increasing the transmission power, the wireless communication areas 12c and 12e are deformed to become the wireless communication area 12f, and the area of the dead area 15 is made as small as possible.

  In addition, the communication device 11d that has determined that a failure has occurred in the wireless communication means can reduce the transmission output of its own wireless communication means, thereby minimizing the influence of radio wave interference or the like on the surrounding wireless communication area. it can. In particular, it is effective when communication apparatuses installed in the vicinity use adjacent or the same frequency.

  If recovery is not possible, the user can take action according to the display information as shown in FIG.

Second Embodiment
FIG. 13 is an explanatory diagram showing an example of a communication system including a plurality of communication devices according to the present invention. This communication system is composed of communication devices 11a, 11b, 11c, and 11d and a control device 17 that controls them (for example, a wireless LAN access point).
In addition, although there are four communication apparatuses, this is set as an example and is not limited to this.

  The communication devices 11a, 11b, 11c, and 11d are network-connected to the control device 17 through a wired LAN 14. The control device 17 is a device that relays these networks and external networks, for example, a router or a gateway. As shown in the figure, the wireless communication areas 12a, 12b, 12c, and 12d of the respective communication devices 11a, 11b, 11c, and 11d transmit such that each interference is minimized and a necessary range is a service area. The power, frequency, and antenna directivity, if possible, are determined and installed to enable wireless communication of the portable wireless terminal 16.

  The control device 17 can appropriately control each of the communication devices 11a to 11d by receiving the information on the change in the installation state of each of the communication devices 11a to 11d sent from the wired LAN. It is also expected that the installation conditions of the communication apparatuses 11a to 11d once installed will change. In the first embodiment, when a failure such as artificial change of the installation position, overturn due to force majeure, or something that affects radio wave radiation around the antenna occurs, the communication device itself performs processing. In the present embodiment, the control device 17 performs recovery processing and failure notification. Since the process itself is the same as that of the first embodiment, detailed description thereof is omitted.

  In the first embodiment, each communication device performs recovery processing. This is because a different control device different from the communication device performs optimal processing based on the state of the entire system. Appropriate processing becomes possible.

It is a block diagram which shows embodiment of the communication apparatus which concerns on this invention. It is a block diagram which shows the structural example of a central control part. It is a general-view figure which shows an acceleration sensor. It is a figure which shows the case where acceleration is added to the acceleration sensor. It is a figure which shows arrangement | positioning of the piezoresistor of an acceleration sensor. This is a bridge circuit that extracts changes in piezoresistance as an electrical signal. It is a figure which shows the winding type mechanism of a cable. It is a figure which shows the winding type mechanism of a cable. It is a block diagram which shows the other communication apparatus of this embodiment. It is a figure which shows the structural example of a diplexer. It is a flowchart which shows the status detection of a communication apparatus, and the notification process of failure information. It is a figure which shows a mode that the transmission power and antenna directivity of a communication apparatus are varied in order to supplement a dead area. It is explanatory drawing which shows an example of the communication system which concerns on this invention. It is a figure which shows the example from which the installation state of the communication apparatus was changed.

Explanation of symbols

11a, 11b, 11c, 11d Communication relay devices 12a, 12b, 12c, 12d Wireless communication area 14 Wired LAN
15 Sensitive Area 16 Band Wireless Terminal 17 Control Device 20 Power Cable 21 Antenna 22 Transmission / Reception Switching Unit 24 Transmitting Unit 26 Receiving Unit 27 Wireless Control Unit 28 Central Control Unit 29 Wired Communication Unit 30 Wired Control Unit 31 Power Supply 32 Sensors 33, 34 Cable 34 Cable 35 Diplexer 36 Display unit 46 Non-volatile memory 50 Acceleration sensor 51 Frame 52 Weight 53 Beam 54 Piezoresistors 55, 56, 57 Wheatstone bridge circuit 61 Mechanism 62 Bobbin 63 Ratchet brake mechanism 64 Shaft 65 Roller 66 Cam 71 Mechanism 81 Communication Device 91 Circulator 92 Detector

Claims (18)

In a communication device comprising a single or a plurality of wireless communication means and a single or a plurality of wired communication means, and capable of performing communication by combining each of the wireless communication means and the wired communication means,
Detecting means for detecting the installation state of the communication device;
Installation failure determination means for determining an installation failure from the detection result of the detection means;
A communication apparatus comprising:   2. The apparatus according to claim 1, wherein when the installation failure determination unit determines from the detection result of the detection unit that an installation failure has occurred, the user is notified of the installation failure by light, sound, and character information. Communication equipment.   When the installation failure determination means determines that an installation failure has occurred from the detection result of the detection means, the installation failure information determined by the installation failure determination means is used as another communication device using a single or a plurality of wireless communication means. The communication device according to claim 1, wherein the communication device is notified.   When the installation failure determination unit determines that an installation failure has occurred from the detection result of the detection unit, the installation failure information determined by the installation failure determination unit is used as another communication device using a single or a plurality of wired communication units. The communication device according to claim 1, wherein the communication device is notified.   When it is determined that the installation state determination means has caused an installation failure from the detection result of the detection means, the installation failure information determined by the installation failure determination means is a single or a plurality of wireless communication means and a single or a plurality of The communication apparatus according to claim 1 or 2, wherein each of the wired communication means is combined and notified to another communication apparatus. It further comprises storage means for storing a preset setting failure judgment reference value,
6. The installation failure determination unit according to claim 1, wherein a determination reference value stored in the storage unit is compared with a detection value detected by the detection unit to determine an installation failure. A communication device according to claim 1. After the installation failure determination means determines that an installation failure has occurred, the communication failure of which communication means has failed among the single or multiple wireless communication means and the single or multiple wired communication means A search means for searching for
Based on the search result of the search means, a communication means that does not cause communication failure is selected, and communication failure information that indicates which installation failure information or communication means that causes communication failure is notified to other communication devices. The communication device according to claim 1, wherein:   8. The communication apparatus according to claim 6, wherein when the installation failure determination unit determines that an installation failure has occurred, the communication function of each of the single or plural communication units is controlled.   9. The communication apparatus according to claim 1, wherein when it is determined from the installation failure information and the communication failure information that a failure has occurred in the wireless communication means, the transmission output of the wireless communication means is varied. .   The communication device according to claim 1, wherein the detection unit is a direction sensor.   The communication device according to claim 1, wherein the detection unit is an acceleration sensor.   The communication device according to claim 1, wherein the detection unit is a gravity sensor.   The communication device according to claim 1, wherein the detection unit is a tension sensor.   The communication apparatus according to claim 13, wherein the tension sensor detects a tension of a power cable or a wired communication cable.   The communication device according to claim 1, wherein the detection unit detects a return loss of a transmission antenna of the wireless communication unit. A communication system comprising a plurality of communication devices according to claim 1 to form a network.   17. The communication system according to claim 16, further comprising a management control device that performs centralized management by connecting a plurality of communication devices constituting a network by wired communication.   18. The other communication device that has received the failure notification from the communication device in which the failure has occurred relays the failure notification using a communication unit in which the failure included in the communication device is not detected. The communication system described.

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