JP2003281697A - Parking lot service system, and moving element terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently and smoothly use and make use of parking lot information service. <P>SOLUTION: This parking lot information service system composed of a managing center 4 collecting, editing, and renewing parking lot information such as a distinguishing code of each parking lot 6, and availability of vacant spaces; a digital broadcasting station 2 connected to the managing center 4 by a high-seed circuit and periodically digital broadcasting the newest parking lot information including the distinguish code to the whole country through an HEO satellite 1; a terminal device 10 provided on an automobile 3, including a receiving device 23 receiving the parking lot information of the digital broadcasting, a memory 21 in which the received parking lot information is renewed and stored with a frequency of the broadcasting, and editing means editing the parking lot information stored in the memory 21 on the basis of predetermined conditioned and outputting that as indication data whenever the parking lot information is renewed, an indicating device 13 screen indicating the indication data, and an input device 14 setting the conditions, and mounted on a moving element. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for providing a parking lot utilization service using digital broadcasting, a method thereof, and a terminal device.

[0002]

2. Description of the Related Art In Japanese Unexamined Patent Application Publication No. 10-122886, a driver touches a parking lot item displayed in a navigator of an automobile to transmit the current position of the automobile GPS and reservation information of the parking lot to a management center. However, the management center shows an example of a parking lot utilization service in which parking lot reservation and route guidance are displayed on the navigator by transmitting parking lot information near the current position of the automobile to the navigator. In this publicly known example, a detailed concrete example of the reservation management method is disclosed, but regarding the communication means, only wireless communication is described.

In another example disclosed in Japanese Patent Laid-Open No. 2000-105896, as a specific communication means, a special access is made to a management center via a telephone line and a personal computer communication network via a telephone line. Even if you do not have a navigator, you can use your mobile phone to obtain the desired parking lot information.

[0004]

In the above-mentioned prior art, wireless communication is used between a moving body such as an automobile and the management center. When the communication is performed for the first time, the vacant information is obtained when the parking lot is full. In order to do so, it is necessary to continue communication at all times, and there is the problem that communication costs increase. In addition, in such a crowded state or when there are many users of this service, there is also a problem that communication traffic from the parking lot user terminal device increases and it becomes difficult to connect the communication. For users of parking lot information services, the value of using such a parking lot service is greatest when the parking lot is crowded and full. However, in the conventional example, it has not been sufficiently taken into consideration.

In addition, since the parking lot information service user's choice of a parking lot strongly depends on his / her preference, there is a problem that it is very difficult to use unless the preference is met.

Further, when the user of the parking lot information service uses the terminal device to obtain the parking lot information, there is a problem that the input of the terminal operation is troublesome. Further, if the terminal device mounted on the moving body is used only for acquiring parking lot information, there is a problem that the usability of the terminal device is low.

Further, when the number of parking lots for which information is provided becomes huge, the parking lot information service function deteriorates, and there is a risk that the parking lot information is not updated in a timely and efficient manner.

In view of the above problems, an object of the present invention is to utilize and operate a parking lot information service efficiently and smoothly.

[0009]

In order to achieve the above object, the present invention provides an identification code for each of a plurality of parking lots,
A management center that collects / edits parking lot information including the number of empty spaces and periodically updates / outputs it, and the parking lot information that is output from the management center that is connected to the management center via a communication line. In a parking lot information service system including a digital broadcasting station that periodically digitally broadcasts and a terminal device that is mounted on a mobile body and receives the digitally broadcasted parking lot information, the terminal device is broadcasted. Receiving means for receiving the parking lot information, the received parking lot information is updated in accordance with the broadcast cycle.
A storage unit to be stored, an editing unit that edits the parking information stored in the storage unit based on preset conditions and outputs the display information as display data every time the parking lot information is updated,
It is characterized by including a display means for displaying the display data on a screen and an input means for setting the condition.

As a result, the information about the parking lot, which the user of the parking lot information service pays attention to by digital broadcasting, in particular the vacant or full information, is displayed on the display screen of the terminal mounted on the moving body at a timing close to real time. It is not necessary to secure a one-to-one communication line between the parking lot information service user and the management center to obtain the information, and thus the communication cost required to obtain the information is not required, and the number of parking lot information service users is increased. During the accompanying congestion, communication traffic will not increase and information acquisition will not become difficult.

[0011] Also, each parking lot information to be broadcasted, identification code of each parking lot, number of empty spaces, accommodation capacity,
It consists of data including latitude and longitude information of the location, transmits this data from each parking lot to each management center via a communication line, and edits each data update at each management center sequentially,
The data is transmitted to the broadcasting center, where the data is edited and digitally broadcast. Other parking lot information is stored in the storage device on the terminal device side of the parking lot information service user by using the identification code uniquely attached to each parking lot as a key. As a result, the latest information of a huge amount of parking lot information can be efficiently presented in a practical broadcasting band, so that a huge number of channels and a huge band are not required.

Further, a digital broadcasting channel is assigned to each large area, and the parking lot information broadcast on each channel is attached with an identification code to each parking lot so as to perform multiplex broadcasting. The editing means may be configured to selectively output the parking lot information of the identification code designated from the digital broadcast reception data to the display means using the identification code as a key. As a result, the latest information required by the parking lot information service user can be efficiently presented from the vast amount of parking lot information.

The editing means is configured to selectively output the information of the parking lot designated from the digital broadcast reception data to the display means by using the identification code as a key, in order to designate the parking lot. In the terminal device, a code input mode for inputting a parking lot identification code from a keyboard, a map selection mode for instructing a position on a map displayed on the screen and designating a parking lot in the vicinity thereof, and a preset parking lot A function to select one of the preset input modes for designating a parking lot is provided. In the code input mode, an address search function for searching an address by the input identification code and a telephone number search function for searching a telephone number are provided. You may The parking lot service user operates the input means,
By providing the function to select the necessary items with the input means while looking at the screen displayed on the display means, the parking lot required by the parking lot information service user from the vast amount of parking lot information You can select the information in a way that suits your taste.

The terminal device is provided with position determining means for determining the current position of the moving body, and the editing means is provided with:
A means for automatically determining the broadcast channels that broadcast the parking lot information of the parking lot from the current position of the mobile unit to the vicinity of the current position and the identification code groups of those parking lots, and automatically receiving useful parking lot information. It may be provided. If the identification codes are hierarchically assigned to the parking lots by region, broadcasting channels for broadcasting parking lot information of the parking lots desired by the parking lot information service user based on the current position of the moving body and those parking stations are displayed. Parking lot identification codes can be automatically determined and useful parking information can be automatically received. This identification code group is created with a hierarchical group of codes for each region, so by comparing the regional code determined from the current position with the hierarchical code, the terminal device can detect the current position of the mobile unit. It is possible to automatically select desired parking lot information that is close to. As a result, it is possible to easily narrow down a plurality of target parking lots without requiring detailed map information and distance calculation from the current position. Furthermore, from these parking lots, calculate the distance between the current position and the position of the parking lot information in the individual information of the parking lot that is sent, and select the top few items that are close in distance. Good.

With the above-mentioned structure, useful information close to the current position can be automatically presented to the user of the parking lot information service from a large amount of parking lot information. Find the desired parking lot data from
The trouble of inputting to the terminal device is reduced.

Further, the editing means constantly monitors the parking lot information of the selected parking lot in the received parking lot information, and automatically confirms that there is a vacant space from the parking lot information of the selected parking lot. It may be configured to include a vacant information detecting unit that selectively detects the vacant information, and to add the vacant information to the display data. With this, when there is a vacancy in the parking lot,
By the operation of the vacancy information detecting means, it is presented to the parking lot information service user without delay, and the parking lot information service user can make an immediate reservation by the parking lot reservation means, so that the parking lot information service user can check the vacant space information of the parking lot. There is no need to constantly monitor. Further, unlike the conventional example, the communication cost is not increased by always performing the communication, and it is not difficult to connect during congestion.

As a broadcasting content in each channel, a means for time-division-multiplex-broadcasting all the parking lot information while updating a large number of each parking lot information in each area at a specific cycle is provided. As a method of realization, priorities are assigned in descending order of real-time requirement, broadcast is performed by changing the update period of each parking lot information, and the mobile terminal device side receiving this broadcast identifies the desired parking lot. The code may be selected and presented. As a result, the frequency of updating the parking lot information can be set to be higher as the update period is made variable so that the parking lot information with a higher real-time demand, in other words, the parking lot information with less available space can be updated. Even if the number of parking lots to send is huge, it is possible to present the parking lot information to the terminal device in a timely and efficient manner.
Since the information remains old and is not updated, the probability that the information service becomes difficult to function can be greatly reduced.

Further, the receiving means is configured to be able to simultaneously receive both a digital broadcasting channel for broadcasting parking lot information and another digital broadcasting channel, and the editing means is arranged so that the editing means receives the received parking lot information. Of the above, the parking lot information of the selected parking lot is constantly monitored, and a free space detecting means for automatically detecting that there is a free space from the parking lot information of the selected parking lot is provided. When a signal indicating the fact is detected, the fact that an empty space has occurred in the previously designated parking lot is displayed on the display means displaying the received contents of the another digital broadcast, on the screen being displayed. Alternatively, the displayed screen may be switched to a screen showing parking lot information and displayed. As a result, the parking lot information service user can use the front program (normal digital broadcast program) while
Since the parking lot information can be obtained, even when the parking lot is crowded, other services of digital broadcasting can be received, and the terminal device is not occupied to secure the parking lot.

A car navigation device for exchanging data is connected to the terminal device via an interface, and the terminal device is configured to transmit position data of a parking lot to the car navigation device via the interface. At the same time, the car navigation device may be configured to perform route search and display from the current position to the position specified by the position data. When the reservation of the parking lot is confirmed, the car navigation system receives the position data of the reserved parking lot from the terminal device side via the interface, and routes from the current position of the moving body to the target parking lot position. By searching and displaying the result, it is possible to avoid getting lost when moving to the parking space in the secured parking lot.

If a long elliptical orbit satellite broadcasting station that performs digital broadcasting via a long elliptical orbit satellite is used as the digital broadcasting station, it will be digitally displayed due to the shadow of a building or the like in a city where the need for a parking lot is high. It is less likely that the broadcast will not be received, and it becomes less likely that the parking lot information service by digital broadcast will be difficult to receive.

[0021]

DETAILED DESCRIPTION OF THE INVENTION A first embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a block diagram showing a parking lot information service system and a terminal device according to the first embodiment. This system includes parking lots ₆₁ to _n each equipped with a terminal device connected to the Internet line 5, management centers 4 connected to the Internet line 5 and located at six locations nationwide, and each management center 4 A mobile terminal device 1 mounted on a customer's car 3 for receiving a digital broadcast from a HEO satellite 1, displaying parking lot information and making a reservation
It is configured to include 0 and.

The parking lot information of the parking lots _{61 to n} scattered all over the country is edited into the parking lot broadcasting information 100, and the internet line 5 via the telephone line is connected to the terminal device (not shown) in each parking lot. It is collected in the management center 4 via the route. The parking lot broadcast information 100 is transmitted in a predetermined format (FIG. 2) described later. The collected parking lot broadcast information 100 is managed by the management center 4, and the parking lot broadcast information 100 to be transmitted to the automobile is transmitted to the digital broadcasting station 2 by a dedicated line.

In the digital broadcasting station 2, the transmitted parking lot broadcasting information 100 from the plurality of management centers 4 is input to the broadcasting editing device 8 and is updated for a national broadcasting at a fixed cycle. Edited into parking lot information data,
It is transmitted to the digital broadcasting device 7 by a dedicated line. The digital broadcasting device 7 modulates the transmitted nationwide broadcast parking lot information data into an electric wave and transmits (uplinks) it to the elliptical orbit satellite 1 (hereinafter referred to as HEO satellite) in the satellite orbit.

The HEO satellite 1 broadcasts this nationwide version of digital broadcasting parking lot information data to the ground by S charging waves, that is, to the automobiles 3 nationwide. In a car 3 in which a person who desires to use a parking lot in the whole country board, a mobile terminal device 10 mounted therein receives a digital broadcast from the HEO satellite 1, displays parking lot information, and makes a reservation.

This information service can be used by many automobiles 3 nationwide, but in FIG.
It is expressed as 1 to _m . Here as a representative example within it, will be described in more detail with reference to the mobile terminal apparatus 10 mounted on the vehicle 3 _1, the same configuration applies to other automobiles.

The car 3 mobile terminal device mounted to _one (hereinafter, the terminal device hereinafter) is 10, the receiving apparatus 23 for receiving digital broadcasting, a central processing digital broadcasting data received by the receiving apparatus 23 is input A display processing device 1 connected to the device 11 and the central processing device 11 for editing data in order to display digital broadcast data in a desired format.
2, a display device 13 connected to the display processing device 12 for displaying edited digital broadcast video, a central processing device 11
Connected to the audio processing device 19 for editing such as switching / synthesizing audio information data of digital broadcasting
Speaker 2 which is connected to and sends edited audio information to the car
0, a storage device 21 connected to the central processing unit 11 for storing the received national version broadcast parking lot information data in the format of each parking lot broadcast information 100, the central processing unit 11 and the storage device 2
An identification processing device 15 for identifying only specific parking lot information data from the enormous amount of parking lot data transmitted by digital broadcasting using each parking lot broadcast information 100 connected to the storage device 21 and stored in the storage device 21. A vacancy information detection device 16 connected to the central processing unit 11 to detect vacant information in the parking lot, a reservation processing device 17 connected to the central processing device 11 for making a reservation for the parking lot, and a reservation processing device 17 connected to the reservation Mobile terminal device 1 for communicating information to the management center 4
8 and an input device 14 that is connected to the central processing unit 11 and is used for program selection of digital broadcasting and input processing of parking lot information.

The central processing unit 11 includes a display processing unit 12,
The terminal setting information 200 shown in FIG. 4 and the information processing data 300 shown in FIG. 5 are transferred between the sound processing device 19, the identification processing device 15, the vacancy information detection device 16, and the reservation processing device 17 for data transfer. To use. Details of these will be described later. The central processing unit 11, the display processing device 12, the sound processing device 19, the identification processing device 15, the vacant information detection device 16, and the reservation processing device 17 are collectively referred to as an editing unit.

The receiving device 23 is from the digital broadcasting station 2.
It has a tuner capable of simultaneously receiving two channels of programs broadcast via the HEO satellite 1, one channel for receiving a parking lot information service, and the other channel for receiving another digital broadcast. Further, the central processing unit 11
Has a temporary storage device 22 (not shown) for temporarily storing the received nationwide broadcast parking lot information data in the format of each parking lot broadcast information 100. This temporary storage device 22 is used for parking lot broadcast information 1 that is sequentially updated by digital broadcast.
The latest information of 00 is acquired and used for real-time processing such as monitoring and reservation. It should be noted that, although devices such as a traveling device mounted on an ordinary automobile are omitted from the drawings for clarifying the description of the present invention, it goes without saying that they are mounted.

Next, a method of digitally broadcasting parking lot information will be described. The present invention is characterized in that the information of each parking lot in the whole country is sent to the whole country by satellite broadcasting so that the parking lot information service users can receive the service uniformly throughout the country. , The amount of data becomes huge, it is difficult to select useful information, and
Due to the large amount of information, it takes time to update the parking information. For example, if the area is divided by postal code, the postal code has 7 digits, and the number of combinations is 10 million.
Furthermore, assuming that the average number of parking lots for each area is 5, 500
It requires 0,000 identifications.

In order to broadcast such a huge amount of data nationwide, it is necessary to occupy a high-speed line, and if the amount of data to be broadcast is large, the update cycle (Once information has been acquired, new information has to be acquired) It is not practical because it takes a long time. Further, in such division, data transfer is wasteful due to the characteristics of the parking lot concentrated in a specific area.

In order to solve this problem, the results of a survey on the number of off-street toll parking lots nationwide will be described. In big cities (Tokyo, Tokyo, Osaka, Nagoya, Sapporo, Sendai, Chiba, Kawasaki, Yokohama, Kyoto, Kobe, Hiroshima, Kitakyushu, Fukuoka) According to the statistical results in 1999, there are 3632 paid parking lots with an area of 500 m ² or more as defined by the Parking Lot Law. Although there is no data on the number of off-street parking lots in other cities, it can be estimated that there are about 18,000 in the following calculation. That is, it is roughly calculated from the statistical data of the number of cities in 1995 as follows.
Number of cities with population over 300,000 (= 65) * Number of parking lots (= 50) = 3
Number of cities with a population of 250 to 100,000 and less than 300,000 (= 156)
* Number of parking lots (= 30) = 4680 population Number of cities with 50,000 or more and less than 100,000 population (= 220) * Number of parking lots (= 20) = 4400 population 5
Number of cities with less than 10,000 people (= 224) * Number of parking lots (= 10) = 224
0 When these are all added up, it becomes about 18,000. When the target area is expanded to the towns and villages, the number of parking lots is predicted to be 5,840, which is 12,840, which is about 31,000 in total.
Therefore, in the present embodiment, an identification number that can be managed uniformly in each parking lot is represented by 16 bits. As a result, it is possible to identify the number of parking lots up to 65536 in consideration of the subsequent increase in the number of parking lots and the prediction error, so that it is possible to cover the main pay parking lots nationwide.

Next, the parking lot broadcast information 100 transmitted from the management center 4 to the broadcast editing apparatus 8 will be described with reference to FIG. The more parking information you need to send, the better,
As described above, this causes an increase in the line capacity, and as a result, the time required for updating the information, and thus the information updating cycle, becomes longer. Therefore, in terms of actual operation, it is necessary to reduce the update cycle with as little line capacity as possible.
Moreover, it is advantageous in terms of cost.

Therefore, in the present embodiment, the parking lot broadcast information 100 of 72 bits is constructed in the format shown in FIG. The 72-bit breakdown of this parking lot broadcast information 100 is an identification code 101 (16 bits) and full vehicle information 102.
(1 bit), current empty vehicle number 103 (8 bits), accommodation capacity number 104 (8 bits), latitude information 105 (17 bits) of location of parking lot, same longitude information 106 (17 bits), and other additions Information 107 (5 bits), total 72
Is a bit.

The identification code 101 is, as described above, for identifying one parking lot from among the parking lots nationwide. The full vehicle information 102 is represented by 1 when the vehicle is empty (when there is a parking space for a predetermined number of vehicles) and 0 when the vehicle is full. This is because it is possible to determine whether or not an empty parking lot is included in the parking lot information by a simple arithmetic operation of ORing only the full vehicle information bit from the multiple parking lot information. In the case where the parking use area is crowded, even if the number of candidate parking lots is large, it is possible to immediately determine whether or not the vehicle is empty.

The number of vacant cars 103 and the capacity 104 are for acquiring more detailed parking lot information. For example, if it is difficult to make a reservation at a parking lot where congestion is expected,
The number of vacant cars 103 or the change in the number of vacant cars 103 can be monitored, and the higher the probability that a parking lot with a larger capacity can be vacant, the more information about capacity can be selectively monitored based on the capacity data. Then, it is possible to efficiently find a parking lot where empty cars are likely to occur.

The latitude information 105 and the longitude information 106 of the parking lot location provide data for the parking lot information service user to effectively search for a parking lot near the intended location. In other words, since the distance between the two can be calculated from the latitude / longitude information of the location of the purpose (a place other than the parking lot) that the person driving the car is going to go to and the information of the parking lot, it is possible to calculate the distance between them. Allows you to choose ones that are close to your destination. Further, the reason why the data amount is set to 17 bits is as follows. In Japan,
The latitude is in the range of 25 degrees from 20 degrees north to 45 degrees north, and the longitude is 31 degrees from 122 degrees east to 153 degrees east. Therefore, to express this value, 5 bits (= 3
2) Yes. Since minutes and seconds are in hexadecimal, 6 bits (= 64) can represent each. The total of these is 17 bits. This will cover all of Japan. Since the resolution can be expressed up to seconds, it can be specified with high accuracy of about 33 m in the latitude direction and about 22 m in the longitude direction.
Even when the position is expressed by linking with the car navigation, it is sufficiently practical to have such accuracy.

Other additional information 107 (5 bits) is an auxiliary code for information expansion. For example, when the number of parking lots increases in the future and the number of parking lots cannot be expressed by 16 bits, it can be used as an auxiliary identification code. In this case, if all bits are used, the total number of data bits will be about 200 without increasing.
It can accommodate up to 10,000 parking lots. Further, it can be utilized as additional information for improving the positional accuracy, and information on the number of parkable vehicles of a specific vehicle such as a minibus may be displayed. It can also be used for additional information such as parking-specific services.

Next, the update cycle of the parking lot broadcast information 100 received by each car by digital broadcasting will be described. A case will be described in which the HEO satellite 1 is used to perform 100-channel digital broadcasting and the 1-channel is used to provide a parking lot information service. In this case, assuming that the transmission rate is about 24 kbps, the total amount of parking lot information in the case of broadcasting all identification codes according to the present embodiment is the total number of identification code data (= 65536) x each parking lot. The number of information data (= 72 bits) = 4.7 Mbits.
The transmission time update cycle for transmitting all the data at 24 kbps is 4.7M / 24k = about 197s = about 3.3 minutes.

Since the update cycle is also about 3.3 minutes, it is sufficiently practical as an update cycle for broadcasting the parking lot information received by the automobile 3. The transmission rate is 24kb
Since it is ps, the latest parking lot broadcast information 100 sent from each parking lot 6 to the management center 4 can be sufficiently handled even through the telephone line Internet.

In this embodiment, only one channel of HEO satellite 1 is used, but a plurality of channels may be used. In this case, the update cycle is further shortened, and even if the identification code is expanded in the future, the update cycle can be maintained at a constant level.

In the present embodiment, the telephone line internet is used to collect the parking lot broadcast information 100, but it goes without saying that the information may be collected via another high-speed line such as an optical fiber network.

Next, the usage and function of the parking lot information service of this embodiment will be described. Parking lot information service user of the car 3 in ₁ selects a main digital broadcast program input device 14, the presence or absence of the parking lot information service. The input channel information and the like are input to the identification processing device 15. In the identification processing device 15, the following processing is performed based on the information from the input device 14.

Data of the front program channel 311, the back program channel 312, and the parking lot service use flag 313 of the information processing data 300 shown in FIG. 5 are set in the identification processing device 15 as the management data 310 of the information processing data 300. . When the parking lot information service user selects to use the parking lot information service, the parking lot service use flag 313 is set to 1, and when not used, it is set to 0. When the parking lot information service channel is selected as the front program, the main program selected previously is set as the back program channel, and the channel of the parking lot information service is set as the front program channel. When the user of the parking lot information service wants to watch the main program, the data of the front program channel 311 and the back program channel 312 are exchanged by instructing the front / back program switching from the input device 14.

Next, the mechanism and procedure for using the parking lot service, which is the essence of the present invention, will be described in detail.
First, when the parking lot service is selected, the setting screen of FIG. 3 is displayed on the display device 13. The following terminal setting information 200 is input to the input device 14 on this screen. (1) Screen mode 210 (menu mode 211, broadcast mode 212) (2) Parking lot selection method 220 (code input mode 22)
1, map selection automatic mode 222, map selection manual mode 2
23, preset mode 224), (3) reservation method 230 (reservation automatic mode 231, reservation manual mode 232) (4) parking lot information service screen display method 240 (parking lot list display mode 241, parking lot map display mode 24)
2, superimpose mode 243, non-display mode 2
44, setting mode 245), (5) sound presentation method 250 of parking lot information service (parking lot information sound presentation mode 251, simultaneous sound presentation mode 25
2, table program sound presentation mode 253), (6) display identification code 260 (none other than code input), (7) monitoring request flag 270 (each display identification code 260)
(8) Reservation request flag 280 (each display identification code 260
), The input information is input from the input device 14 to the identification processing device 1
5, edited as the terminal setting information 200 shown in FIG. 4, and sent to the central processing unit 11 together with the information processing data 300 (a state in which only management data is set).

In the central processing unit 11, the parking lot broadcast information 1
00 and terminal setting information 200, information processing data 300
The display data 320 is added and edited to the terminal setting information 200
And the information processing data 300, the display processing device 12, the sound processing device 19, the vacant information detection device 16, the reservation processing device 1
Send to 7.

The central processing unit 11 constantly stores the national version broadcast parking lot information data, that is, the parking lot broadcast information 100 received from the HEO satellite 1 by the receiving device 23 for each identification code 101 once. Remember. The required capacity of update data is 72 bits x 65536 = 576k
Since the temporary storage device 22 has a capacity that can be stored in a memory, the temporary storage device 22 has
If a memory is used, there is no problem in high speed reading and writing. At the same time, in the central processing unit 11, the identification processing unit 1
The video data of the digital broadcast specified in 5 and the terminal setting information 200 and the information processing data 300 are displayed on the display processing device 12
Then, the designated acoustic data of the digital broadcasting and the designated parking lot acoustic data are sent to the acoustic processing device 19. In addition, in response to a request from the identification processing device 15, the temporary storage device 22
All data of the parking lot broadcast information 100 stored in the storage device 21 is stored in the storage device 21.

The storage device 21 stores a database 24 that stores data such as parking lot names, location addresses, contact telephone numbers, usage charges, and business hours for each identification code 101. Data initial value writing and updating to the database 24 are provided by a medium such as a CD-ROM or a DVD-ROM, or by a parking lot data update channel broadcast of the same channel as or a different channel from the parking lot broadcast of digital broadcasting. Here, a case of updating data by broadcasting will be described in detail. In this parking lot data update channel, like the parking lot information broadcast 100, the identification code 1
For each 01, data such as parking lot name, location address, contact telephone number, usage fee, business hours, etc. are broadcast. The parking lot information service user operates the input device 14 to match the back program channel with the parking lot data update channel and receive these data. When the parking lot data update channel is set for the back program, the central processing unit 11 stores these broadcast data in the storage device 21 for each identification code 101. Since updating the data by broadcasting does not require the updating speed as much as the parking lot broadcasting information 100,
There is no problem even if the amount of data increases a little, and there is an advantage that the parking lot reservation service can be used with timely data updates and the latest data.

In the display processing device 12, the terminal setting information 20
Depending on the data included in 0, (a) parking lot list display mode 241: a mode for stopping the display of the table program and switching to a screen for displaying the parking lot information list 330 shown in FIG. 6, (b) Parking lot map display mode 242: A mode for stopping the display of the table program and switching to a screen for displaying the parking information on the map, (c) Superimpose mode 243: A table 330 of the parking information as a table program image Superimpose mode, (d) Non-display mode 244: Mode that displays only the front program without displaying parking lot information (e) Setting mode 245: Mode that displays the setting screen. , The display data 320 of the information processing data 300 so that the display format is suitable for the mode.
Is edited and sent to the display device 13. On the display device 13, screens corresponding to the above modes (a) to (e) are displayed.

In the sound processing device 19, the terminal setting information 20
Depending on the data included in 0, (f) parking lot information acoustic presentation mode 251: a mode in which only acoustic information data of parking lot information is sent to the speaker 20, (g) simultaneous acoustic presentation mode 252: digital broadcast of table program Mode in which the volume of the acoustic information data is reduced and the acoustic information data of the parking lot information is simultaneously transmitted, (h) Table program acoustic presentation mode 253: A mode in which the acoustic information data of the digital broadcast of the table program is directly transmitted to the speaker 20. Any one of the above modes is selected, the acoustic data is edited to match the mode, and the edited acoustic data is sent to the speaker 20.

In the speaker 20, sounds corresponding to the above modes (f) to (h) are played. The sound here is
Information sent in programs including audio, and the central processing unit 11
Indicates the sound information generated by the voice synthesis process.

Next, the method of acquiring and reserving the parking lot information to be displayed / monitored by the user of the parking lot information service will be described. Parking mode information service user, screen mode 210
One of the modes is input to the input device 14 by the touch screen method, and the screen mode to be displayed on the display device 13 is set. Menu mode 2 out of screen mode 210
Reference numeral 11 is for setting the state of the parking lot information service, and the broadcast mode 212 is for selecting a channel of a digital broadcast program as in the case of an ordinary television receiver. Parking information service programs are also selected here.

In this embodiment, the touch screen system is used as the interface of the input device, but a mouse system, a remote control system as in a conventional television receiver, or a voice command system may be used. Is not limited.

The case where the parking lot information service user selects the menu mode 211 will be described below. When the menu mode 211 is selected, the menu selection screens (1) to (8) shown in FIG. 4 are displayed on the display device 13.

Next, the parking lot information service user uses the input device 14 to select (2) parking lot selection method 220. A specific selection operation is performed by touching a character displayed on the screen, but hereinafter, it will be described that this is simply selected. At this time, since each mode selection screen of the code input mode 221, the map selection automatic mode 222, the map selection manual mode 223, and the preset mode 224 is displayed on the display device 13, the parking lot information service user can select from these modes. Select one.

When the code input mode 221 is selected, a selection screen for the direct input mode or the search mode is displayed. When the direct input mode is selected, a four-digit hexadecimal code is input by touching the identification code 101 of the target parking lot on the alphanumeric keyboard displayed on the display device 13. If you do not know the identification code 101, you can select the search mode. In this search mode, you can search by address or phone number.For addresses, you can hierarchically select prefectures, cities, towns, and streets in order, and the parking lot name and parking lot code of the corresponding area. The correspondence table of is displayed. When the name of the relevant parking lot is displayed, select it and the identification code 101 of the parking lot is input device 1
Set to 4. In the case of a telephone number, the telephone number of the parking lot is input by touching the alphanumeric keyboard displayed on the display device 13, and the identification code 101 of the parking lot is set in the input device 14 by this operation. When the identification code is set on the input device 14, the display device 13 displays
The menu selection screen shown in FIG. 3 is displayed again. However,
(2) In the parking lot selection method, the characters in the code input mode are displayed in different colors to show that the code input mode has been selected.

There are two map selection modes, a map selection automatic mode 222 and a map selection manual mode 223, which are selected on the map displayed on the display device 13. When the map selection manual mode 223 is selected, a map of the whole country is first displayed, and a destination for which a parking lot is desired is selected on the displayed map. When a destination for which a parking lot is to be obtained is selected on the map, a plurality of parking lot names and their positions, which are digitally broadcasting nearby parking lot information, are displayed on the map. The destination may be selected hierarchically. In other words, after specifying the prefecture on the map of the whole country, after the map of the specified prefecture is displayed,
Select the destination you want to get a parking lot.

A GPS device may be used to automatically determine a destination for which a parking lot is desired. However, in this case, it is limited to the case where the current position is close to the destination. GP
A configuration example using the S device is shown in FIG. Although the GPS device is not directly shown in FIG. 13, it is included in the car navigation device 30. Further, instead of the car navigation device 30, a GPS device may be directly connected. In this case, the position of the vehicle (latitude and longitude information) measured by the GPS device is designated as the position of the destination where the parking lot is desired.

The data display of the parking lot name and the position at the designated position is performed as follows. Identification processing device 15
However, based on the position 121 specified on the map (or the position specified by the GPS device) 121 (latitude / longitude information), the storage device 21 is accessed and the position 122 of the parking lot broadcast information 100 stored therein is stored. (Latitude information 105, longitude information 10
6) is used for searching, and a plurality of items satisfying the following conditions are selected and displayed stepwise according to the distance. For example, as shown below, it is selected stepwise every 250 m and displayed on the map. It is desirable that the map in this case is not a map designating a destination for which a parking lot is desired, but a map having a large scale centered on the designated position as long as the displayed parking lot is included in the screen. 1) Distance 120 (= distance between position information 121 and position information 122) is within 250 m 2) Distance 120 is between 250 m and 500 m 3) Distance 120 is between 500 m and 750 m ... Parking lot information The service user selects a plurality of parking lots for which parking lot information should be displayed from the parking lot names displayed on the map of the display device 13. By this operation, the display identification code 260 corresponding to the selected parking lot is set. When the selection completion is input, the screen of FIG. 4 is displayed again. The selected mode is displayed in different colors, and the display identification code 2 corresponding to the selected mode of the parking lot selection method is displayed.
The display identification code of the selected parking lot is displayed in the frame 60.

Next, a plurality of selected display identification codes 26
When 0 is continuously monitored, the monitoring request flag of (7) is set. When the monitoring request flag is set,
The setting is displayed in the frame of the monitoring request flag 270 corresponding to the selected mode of the parking lot selection method.
If the number of selected display parking lots is large and it is difficult to understand, the number of monitoring parking lots may be set small and the input device 14 may be used.
Since the setting can be made so that only the monitoring parking lot is displayed by the operation of, the number of displays can be reduced and can be easily understood.

The map selection automatic mode 222 is the map selection manual mode 223 until the destination for which a parking lot is desired is designated.
The same as above, the parking lot is automatically selected in the order of decreasing distance. The selected number can be specified by the user of the parking lot information service, but the default value is 5 places.

Next, the parking lot information service user
(3) Select a reservation method. The reservation automatic mode 231 is
The reservation process is automatically carried out when the vacant car information is found in the order of decreasing distance from the selected parking lot.
For this reason, when the reservation automatic mode 231 is selected,
(8) The reservation request flag is automatically set to 1 (reservation). The manual reservation mode 232 requests the parking lot information service user to make a decision when the empty car is found. When the parking lot information service user approves the reservation request, (8) the reservation request flag is set to 1 (reservation). In the reservation manual mode 232, it takes time for the parking lot information service user to determine whether or not the reservation is possible after a vacant car is found. Therefore, when the reservation is made, the parking lot information service user may already be full. However, in the case of the reservation automatic mode 231, there is an advantage that the possibility becomes small and the probability of making a reservation becomes high. Details will be described later. The selected reservation method is displayed in different colors on the screen of the display device 13.

Next, the parking lot information service user selects the screen display method 240 and the sound presentation method 250. Immediately after selection, the parking lot list display mode 241 and the parking lot information sound presentation mode 251 are selected.

After inputting all the data of the terminal setting information 200, the screen returns to the first screen and the menu mode 211
From the broadcast mode 212 to the identification processing device 1
In 5, the following processing is performed.

As the preset value 130 of these terminal setting information 200, the parking lot information service user designates the preset value identification number 131 with the input device 14, and the preset value identification number 131 and the preset value 130 are stored in the storage device 21. To memorize. A plurality of preset values that can be stored are possible and can be rewritten. The terminal setting information 200 and the information processing data 300 are sent to the central processing unit 11. Request the central processing unit 11 to transfer all the parking lot broadcast information 100 stored in the memory of the central processing unit 11 to the storage device 21.

In the central processing unit 11, the parking lot broadcast information 100 sent from the receiving device for receiving the parking lot information service as described above is stored in its memory. When the selection of the parking lot is newly set or changed, the central processing unit 11 shows each of the display identification codes 260 of the terminal setting information 200 designated by the identification processing unit 15 in FIG. The next item of the display data 320 is edited. 1) Set each display identification code 260 to the identification code 322. 2) Using each display identification code 260, the parking lot name stored in the storage device 21 is called and set in the parking lot name 321. 3) The latitude 105 and longitude 106 data of the identification code data of the display identification code 260 set in the identification code 322 is called from the temporary storage device 22, and the position data 3
Set to 23. 4) From the temporary storage device 22, the empty vehicle number 103 of the identification code data of the display identification code 260 set in the identification code 322 is called and set to the empty vehicle number 325. 5) As the monitoring status 326, the value of the monitoring request flag 270 of the parking lot of the display identification code 260 set in the identification code 322 is set. 6) The reservation status 327 sets the current reservation state of the parking lot with the display identification code 260 set in the identification code 322. The reservation status 327 has the following five types. 6-1) Blank (0): Reservation request has not been made. 6-2) Dependence (1): Reservation request flag 280 has a reservation request.
When it is set to (1), if there is an empty car in the parking lot, a reservation request is made, 6-3) Is it? (2): In the manual reservation mode, when the monitoring request flag is set, the reservation request flag is reset, and there is an empty car, the parking lot information service user is waiting for approval of the reservation request, 6-4) Acceptance (3): When the reservation is accepted from the parking lot side, 6-5) No (4): When a reservation request is refused from the parking lot side although the empty parking lot was found and the reservation request was made to the parking lot side , 7) Cancellation status 328 is set when the parking lot information service user has offered a cancellation of the reservation for some reason and the parking lot side has confirmed the cancellation of the reservation. It

Thereafter, the information processing data 300 and the terminal setting information 200 are sent to the display processing device 12.

In the display processing device 12, the screen mode 210
And information processing data 300 according to the screen display method 240.
The screen data is edited based on, and sent to the display device 13. A method of editing screen data in the display processing device 12 will be described.

The mode of the screen display method 240 designated by the operation of the input device 14 is the parking lot list display mode 241.
In the case of, the screen is edited in the form of the list 330 shown in FIG. 6 based on the display data 320 shown in FIG. That is,
The data of the parking lot name 321, the parking lot identification code 322, the position data 323, the number of empty vehicles 325, the monitoring status 326, the reservation status 327, and the cancellation status 328 are edited. As shown in FIG. 8, the display order of the parking lot data in the table is displayed from the top in the order closer to the target position.

When the mode of the screen display method 240 designated by the operation of the input device 14 is the map mode 242,
Using the display data 320 shown in FIG. 5, at the position where the parking lot exists on the map, the parking lot name 321, the number of vacant cars 325,
The screen is edited so that the monitoring status 326, the reservation status 327, and the cancellation status 328 are superimposed and displayed on the map.

Through the above processing, the selected parking lot broadcast information 100 is displayed on the display device 13. FIG. 7 is an example of a screen in the list display mode 241. The user of the parking lot information service can arbitrarily switch the display between the list format and the map format by operating the input device 14 and selecting each mode of the screen display method 240.

In the central processing unit 11, as described above, the parking lot broadcasting information 100 is constantly received from the receiving device for receiving the parking lot information service, and the parking lot broadcasting information 100 stored in the memory is updated. Therefore, the parking lot broadcast information 100 having the identification code designated by the monitoring request flag 270 designated by the identification processing device 15 is read out from the memory in synchronization with the update cycle, and these data, the screen mode 210 and the screen are displayed. The data of the display method 240 is sent to the display processing device 12.

In the display processing device 12, the parking lot broadcast information 1
The parking lot information to be displayed as 00 and the parking lot information to be monitored are distinguished by whether the monitoring status data in FIGS. For example, in FIGS. 6 and 7, the monitoring monitoring status of the Kanayama parking lot is blank, which indicates data that is displayed once but not updated. In the monitoring status, "monitor" indicates parking lot information for which data is updated.

By the above processing, the parking lot to be monitored is updated and displayed on the display device 13 at every update cycle.
The user of the parking lot information service can recognize the latest information of the parking lot information to be monitored on the display device 13.

Next, a parking lot reservation method will be described. The central processing unit 11 selects each parking lot data set with the monitoring request flag 270 from the parking lot broadcast information 100 stored in the temporary storage device 22 and identifies it to the vacancy information detection device 16. Data of code 101 and full vehicle information 102 is sent. This data transmission is repeatedly executed every time the data is updated by digital broadcasting. The vacancy information detecting device 16 performs a logical sum operation on the plurality of full vehicle information 102 sent, and sends the result of the logical sum to the central processing unit 11. At the same time, the vacant information detection device 16 checks whether the logical sum is 1 or 0, and when the logical sum is 1,
Since there is a vacant parking space, the identification code 101 of which the full vehicle information 102 is 1 is sent to the central processing unit 11 from the result of the logical sum and the parking lot data being monitored.

The central processing unit 11 checks the logical sum of the full vehicle information sent from the vacancy information detecting apparatus 16,
When the logical sum is 1, the next reservation process is performed based on the parking lot identification code 101 sent from the vacancy information detection device 16. (1) If the reservation request flag 280 is set to 1 (reserved), proceed to (4). (2) In the reservation manual mode, when the monitoring request flag is set and the reservation request flag is reset, it is necessary to obtain the approval of the reservation request from the parking lot information service user. ? Set to (2). At the same time, the display processing device 12 is instructed to display the reservation approval dialog, and the display processing device 12 causes the display device 13 to display the dialog. Specifically, the inquiry about the reservation acceptance and the display data 320 are sent to the display device 13. Specifically, as shown in the column of the island gold parking lot in FIG. 7, “i?” Is displayed.

For example, when a normal digital broadcast program is displayed on the display device 13, a reservation approval / disapproval inquiry dialog and display data 320 can be superimposed and displayed on the screen (superimpose mode). In the case of), the screen is switched to a screen showing parking lot information, and an inquiry dialog for reservation approval / disapproval and display data 3 are displayed.
It is also possible to display 20 (in the list display mode). (3) The parking lot information service user selects the parking lot data displayed in the format shown in FIG. 7 on the display device 13, and inputs the answer of the inquiry about the reservation request acceptance from the input device 14 as the reservation request approval data. , To the identification processing device 15.
In the identification processing device 15, when the reservation request approval is obtained,
The reservation request flag 280 is set to 1 (reservation request).
If the parking lot information service user does not input the approval of the reservation request to the input device 14, no further reservation processing is performed.
When the reservation request is approved, the process proceeds to the next (4). (4) The reservation status 327 is set to 1 (depend), and the data necessary for the reservation relating to the display identification code 260 of the corresponding parking lot (the display identification code 260 of the reserved parking lot, the reservation telephone number, the identification of the car) Number, billing code, etc.) is read from the storage device 21 and sent to the reservation processing device 17.
In this state, on the display device 13, for example, "y" is displayed as in the column of the Yamada parking lot in FIG. (5) With respect to the display identification code 260 sent, the reservation processing device 17 refers to the data in the column of the matching identification code of the display data 320, and based on the value of the reservation status 327, determines whether or not the reservation is completed. If it is judged and the reservation is not completed,
Using the reservation telephone number that has been sent, a reservation request is transmitted to the management center 4 that controls the relevant parking lot via the mobile phone terminal. (6) Upon receiving the reservation request, the management center 4 sends the reservation request, the vehicle number, the charging code, etc. to the parking lot 6 requesting the reservation via the Internet line 5. (7) The parking lot 6 replies the reservation approval / disapproval information to the management center 4 via the Internet line 5. (8) The management center 4, sends a signal reservation yes or no to car 3 ₁ of the portable terminal device 18 of the reservation. (9) In the reservation processing device 17, if the reservation is accepted, the reservation completion is sent to the central processing device 11, and if the reservation is rejected, the information indicating the reservation failure is sent to the central processing device 11. (10) The central processing unit 11 receives this data,
A value is set in the reservation status 328. That is, as described above, when the reservation is approved, the approval (3) is
If rejected, set No (4).

As a result, the display processing device 12 displays, for example, a consent display in the SAA parking lot column and a rejection display in the Kawasaki parking lot column in FIG. 7, and the parking lot information service user It can be seen that the reservation requests for each parking lot were accepted or rejected. By the above operation, the parking lot information service user can know whether the parking lot has been reserved.

When the reservation method is the reservation automatic mode, by setting the screen display method to the superimpose mode,
Even when the normal digital broadcast program is displayed on the display device 13, when the reservation request for the parking lot is accepted, the screen (screen shown in FIG. 7) indicating the request becomes the screen of the normal digital broadcast program. The information is displayed overlaid, and the parking lot information service user can immediately know that the parking lot has been reserved.

In the present embodiment, it is possible to obtain the full-occupancy information of a plurality of desired parking lots while getting on the automobile in almost real time, and it is possible to make a timely reservation based on the information.

By performing the digital broadcasting using the HEO satellite, the elevation angle of the reception direction of the radio wave received by the terminal device becomes high, and reception is less likely to occur even in an urban area with many buildings, and the station is parked. In urban areas where there is a strong need to find a parking lot, the parking lot information service is less likely to be interrupted or difficult to receive.

According to the present embodiment, even when the parking lot is full, there is an effect that the vacant information of the parking lot can be quickly obtained with a small communication cost. Further, it is possible to provide a service for efficiently broadcasting a huge amount of parking lot information dispersed throughout the country in a practical broadcasting band. Further, the parking lot information service user can efficiently present the parking lot information suitable for the purpose from the huge amount of parking lot information. According to the present embodiment, the parking lot information service user can select a parking lot that suits his or her purpose by a method that suits the taste of the parking lot information service, and the parking lot information service user can obtain the parking lot information or reserve the parking lot. The troublesome terminal input operation is reduced.

Further, according to the present embodiment, the terminal device mounted on the mobile body is made available for other services of digital broadcasting at the same time without occupying only the parking lot information acquisition. This has the effect of increasing the usability of the device.

FIG. 9 is a block diagram showing a parking lot information service system and a terminal device according to the second embodiment of the present invention. The present embodiment is different from the first embodiment shown in FIG. 1 in that, instead of the mobile terminal device 18, a transmission / reception device 25 is connected to the reservation processing device 17 and a dedicated line is connected to the management center 4. A communication station 9 that is connected and communicates via the HEO satellite 1 is installed, and the mobile terminal device 1
Information communication with the management center 4, which was carried out in 8, is the HEO satellite 1
This is a point to be performed via the communication station 9 via. The rest of the configuration is the same as that of the first embodiment, so description will be omitted.

With this configuration, high-speed two-way data communication by satellite is possible, so that it is possible to make a reservation when the communication by the mobile terminal device 18 is congested or in the area where the communication by the mobile terminal device 18 cannot be received. In addition, since a special high-speed communication line can be used, there is an effect that it is possible to make a reservation efficiently when the vacant car information is obtained.

FIG. 10 is a block diagram showing a parking lot information service system and a terminal device according to the third embodiment of the present invention. This embodiment is different from the second embodiment shown in FIG. 9 in that instead of the internet line used for communication between the management center 4 and each parking lot, the management center 4 and each parking lot are replaced. 6 is that a communication device 9a for communicating via the HEO satellite 1 is installed. The rest of the configuration is the same as that of the second embodiment, so description will be omitted. The operation is the same as that of the second embodiment except that the processing at the time of reservation is the next processing and the communication between each parking lot and the management center 4 is performed via the HEO satellite 1.

[0086] That is, when the car 3 ₁ of the parking lot information service user to a reservation request, the mobile terminal device 10 in the reservation processing unit 17, said from the central processing unit 11 in the first embodiment booking Instead of receiving the destination phone number,
The satellite communication line address of the parking lot to be reserved and the satellite communication line address of the management center 4 which controls the corresponding parking lot are obtained. Then, the transmission / reception device 25 is used to transmit the reservation request to the corresponding parking lot 6 and the management center 4 which controls the parking lot via the satellite communication line of the HEO satellite 1. The relevant parking lot 6 uses the communication device 9 to simultaneously transmit the parking lot reservation approval / disapproval information to the management center 4 and the transmission / reception device 25 which made the reservation request, via the HEO satellite line. The reservation processing device 17, which has received the reservation approval information via the transmission / reception device 25, transmits the reservation request, the vehicle number, the billing code and the like only to the parking lot 6 to which the reservation is requested. The parking lot 6 which has received these pieces of information transmits information of the reservation processing completion to the management center 4 and the transmitting / receiving device 25 by the same HEO satellite line.

According to the present embodiment, the confidential information such as the charging code directly reaches the relevant parking lot through the satellite line.
The possibility that confidential information will be leaked to a person is reduced, and security is enhanced. Further, communication overhead between the management center 4 and the parking lot 6 and communication overhead and delay when using the Internet line are eliminated, so information between the management center 4, each parking lot 6 and the mobile terminal device 10 in the car 3 is eliminated. There is an effect that the simultaneity of exchange is increased, and more efficient reservation can be made.

FIG. 11 is a block diagram showing a parking lot information service system according to the fourth embodiment of the present invention. The present embodiment is different from the third embodiment shown in FIG. 10 in that the functions of the management center 4 are centrally managed at one place in the third embodiment, but in the present embodiment, , Nationwide in 6 regional blocks (Kanto, Kansai, Chubu / Hokuriku, Tohoku /
It is divided into Hokkaido, Chugoku / Shikoku, and Kyushu / Okinawa), and each area block has a management center (management center 4a to management center 4f), which is configured to decentralize and manage the parking lot for each area block, and the center. The processor 11 is provided with a function of switching the digital broadcast channel received by the receiver 23. The data of these management centers 4a to 4f are configured to be transmitted to the digital broadcasting station 2 through a dedicated line.

Since the digital broadcasting station 2 broadcasts the parking lot information on the different digital broadcasting channels for each regional block, the parking lot information of 6 blocks flows at the same time, the update cycle becomes short, and it becomes close to real-time data. .

The management center 4a manages the parking lot 6 (a1) to the parking lot 6 (an) in the area block under its jurisdiction, and hereinafter, the management center 4b, the management center 4c, the management center 4d, the management center 4e, and the management center 4e. The center 4f manages the parking lot of each regional block. FIG. 12 shows a specific example of the regional distribution of these 6 blocks. In this example, it is divided into 6 blocks,
Depending on the size of the parking lot service users, the number of parking lots, etc.,
The number may be smaller than this, or the urban area such as Tokyo may be divided in more detail. In this example, the parking lot identification codes are hierarchically assigned by region as follows.

That is, in each of the six blocks, the first code of the identification code is assigned to the numeral representing the digital broadcasting channel, the second code is assigned to each prefecture belonging to each block, and the third code and the fourth code are assigned. The codes are assigned to the municipalities that belong to each prefecture, and the codes representing the parking lots that belong to each municipality are assigned to the fifth code and below. Two-digit municipality codes are prepared, but if there are many parking lots belonging to that municipality, multiple codes are assigned to one municipality. Conversely, if there are few parking lots, the same code is assigned to multiple municipalities. ing. As a result, the identification code can be applied to the uneven number of parking lots in each area.

The following two useful functions are configured by layering the identification code in this way. The first function is to select a parking lot close to the target position. That is, when the parking lot service user knows the prefecture name and the municipality name to which the parking place belongs, by operating the terminal device 10 and inputting the prefecture name and the municipality name, the identification processing device The first code (digital broadcast channel), the second code (prefecture code), and the third and fourth codes (municipal code) can be determined within 15. That is, the upper 4 digits of the identification code can be determined from these codes, and the parking lot information data in which the upper 4 digits of the identification code is the determined code is read from the storage device 21, and the display processing device 1
5, and can be presented on the display device 13. Therefore, the parking lot service user can easily narrow down the parking lot that suits the purpose.

If the upper 4 digits of the identification code can be determined, the digital broadcasting channel to be received is known. Therefore, if the central processing unit 11 is provided with a function for switching the digital broadcasting channel received by the receiving device 23,
Only the required digital broadcast channels can be received.

The second function is a function of changing the frequency of updating parking lot information in descending order of access. Each management center 4
Then, for the second to fourth digits of the identification code of each parking lot, the number of reservation accesses by the parking lot information service user is aggregated and managed. The number of reserved accesses per unit time is
The data update cycle is set to be twice as large as the average access count of the whole, and the data update cycle is set to be twice as large as the average access cycle.

With the above-mentioned configuration, the update period of the parking lot information can be changed according to the frequency of the number of accesses, and the parking lot information which has a large number of reserved accesses and is crowded has the latest information. It is possible to provide frequent and efficient parking service with excellent real-time performance. According to the present embodiment, even if the number of parking lots that provide information becomes huge, it is possible to prevent deterioration of the parking lot information service function and effectively present the update of the parking lot information in a timely manner. .

In this embodiment, the HEO satellite is used as the satellite, but a similar quasi-zenith satellite that can similarly obtain a high angle may be used.

In this embodiment, the satellite line is used for the information transmission between the parking lot 6 and the management center 4, but a telephone Internet line may be used.

FIG. 13 shows the fifth embodiment of the present invention.
It is a block diagram which shows the terminal device of a parking lot information service system. This embodiment is different from the third embodiment shown in FIG. 10, the car 3 _1, in that the car navigation apparatus 30 is mounted in addition to the terminal device 10. Since the other configurations are the same as those of the third embodiment, the description thereof will be omitted.

Terminal device 10 and car navigation device 3
0 has interfaces 31 for exchanging information with each other. Although the interface 31 is the USB interface, it may be another general-purpose wired interface such as RS232C or RS422, or a wireless interface such as Bluetooth. From car navigation device 30 via the interface 31, the current position data of the car 3 ₁ is passed to the terminal device 10. The position information of the reserved parking lot is passed from the terminal device 10 to the car navigation device 30 via the interface 31. Upon receiving the position information, the car navigation device 30 searches the route from the current position to the position specified by the received position information, and displays the search result.

With this configuration, when the terminal device 10 is operated to search for the target parking lot, it is not necessary to input the current position one by one, and the operability is improved. By using the route search function of the car navigation device 30,
The route from the current position to the reserved parking lot can be displayed on the car navigation system, and navigation to the parking lot becomes possible. Then, when a parking lot is reserved, there is an effect of providing a service that enables quick movement to the parking lot. Further, in the present embodiment, the car navigation device 30 and the terminal device 10 are separate devices. However, the function of the car navigation device 30 may be directly incorporated in the terminal device 10. The terminal device 10 has a map display function, and has a central processing unit 11 and an input device 14.
Since the devices necessary for the car navigation device such as the display device 13, the speaker 20, the storage device 21 for storing the map, and the like are already included, the functions of the car navigation device can be realized by developing these devices. Is easy. That is, the terminal device 10 may be provided with the interface of the GPS sensor 32 so that the GPS data is taken in at a cycle of 1 second. Further, the map operation can be easily realized by the software processed by the central processing unit 11.

According to the present embodiment, the car navigation function, the digital broadcast receiving function, and the parking lot service utilizing function can be realized by one terminal device, so that the installation can be performed even in an automobile having a small mounting space. There is.

[0102]

According to the present invention, the parking lot information service can be used and operated efficiently and smoothly.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall configuration of a parking lot information service system and a configuration of a mobile terminal device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing the structure of data broadcast in the embodiment shown in FIG.

FIG. 3 is a diagram showing a mode configuration in the embodiment shown in FIG.

FIG. 4 is a diagram showing an example of a display screen in the embodiment shown in FIG.

FIG. 5 is a diagram showing an example of a data structure inside a mobile terminal device in the embodiment shown in FIG.

FIG. 6 is a diagram showing another example of the display screen in the embodiment shown in FIG.

FIG. 7 is a diagram showing still another example of the display screen in the embodiment shown in FIG.

FIG. 8 is a diagram showing an example of parking lot position data in the embodiment shown in FIG. 1.

FIG. 9 is a block diagram showing configurations of a parking lot information service system and a mobile terminal device according to a second embodiment of the present invention.

FIG. 10 is a block diagram showing configurations of a parking lot information service system and a mobile terminal device according to a third embodiment of the present invention.

FIG. 11 is a block diagram showing a configuration of a parking lot information service system according to a fourth embodiment of this invention.

12 is a diagram showing an example of district divisions in the embodiment shown in FIG.

FIG. 13 is a block diagram showing a configuration of a mobile terminal device according to a fifth embodiment of the present invention.

[Explanation of symbols]

1 HEO (elliptic orbit) satellite 2 digital broadcast station ₃ 1 to 3 _m car 4,4a~4f control center 5 Internet Access ₆ 1 to 6 _n Parking 7 digital broadcasting device 8 broadcast editing apparatus 9 communication station 9a~9f communication Device 10 Mobile terminal device 11 Central processing device 12 Display processing device 13 Display device 14 Input device 15 Identification processing device 16 Vacant information detection device 17 Reservation processing device 18 Mobile terminal device 19 Sound processing device 20 Speaker 21 Storage device 23 Reception device 25 Transceiver

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Claims (18)

[Claims] 1. A management center that collects and edits parking lot information including identification codes of a plurality of parking lots and the number of empty spaces, and periodically updates and outputs it, and is connected to the management center via a communication line. A parking lot information service system including: a digital broadcasting station that periodically digitally broadcasts the parking lot information output from the management center; and a terminal device mounted on a mobile body and receiving the parking lot information. In the terminal device, the terminal device receives the broadcasted parking lot information, a storage device that updates and stores the received parking lot information in accordance with the broadcast cycle, and parking information stored in the storage device. Every time the parking lot information is updated, editing means for editing based on preset conditions and outputting as display data, display means for displaying the display data on the screen, A parking lot information service system characterized by comprising input means for setting the number of cases. 2. The parking lot information service system according to claim 1, wherein the broadcast parking lot information data includes an identification code of each parking lot, the number of empty spaces, a storage capacity, latitude and longitude information of a location. The parking lot information service system, wherein the other data including the parking lot name is stored in the storage means by using the identification code of each parking lot as a key. 3. The parking lot information service system according to claim 1 or 2, wherein the digital broadcasting station allocates a broadcasting channel to each large area, and the parking lot information broadcast on each channel has an identification code for each parking lot. Is configured to perform multiplex broadcasting, and the editing means selectively outputs the parking lot information of the identification code designated from the digital broadcast reception data to the display means by using the identification code as a key. Parking information service system, which is characterized in that 4. The parking lot information service system according to any one of claims 1 to 3, wherein the editing means uses the identification code as a key and is designated from the digital broadcast reception data. The terminal device is configured to selectively output the information of the parking lot to the display means, and in order to specify the parking lot, the terminal device has a code input mode for inputting an identification code of the parking lot from the keyboard, and a map displayed on the screen. A function to select one of a map selection mode for designating an upper position and a parking lot near it and a preset input mode for designating a preset parking lot is provided. A parking lot information service system having an address search function for searching an address by an identification code and a telephone number search function for searching a telephone number. 5. The parking lot information service system according to claim 3 or 4, wherein the identification code is hierarchically assigned to a parking lot according to a region, and the terminal device,
In addition to the position determining means for determining the current position of the mobile body, the editing means includes a broadcast channel for broadcasting parking lot information of a parking lot near the current position from the current position of the mobile body and a group of identification codes of the parking lots. A parking lot information service system comprising means for automatically determining and automatically receiving useful parking lot information. 6. The parking lot information service system according to any one of claims 1 to 5, wherein the editing means stores the parking lot information of a selected parking lot in the received parking lot information. A vacant information detecting unit that constantly monitors and automatically detects that there is a vacant space from the parking lot information of the selected parking lot is provided, and the vacant information is configured to be added to the display data. A characteristic parking lot information service system. 7. The parking lot information service system according to any one of claims 1 to 5, wherein the management center classifies the parking lot into a specific category, and stores the parking lot information for each classification. A parking lot information service characterized by being configured to evaluate the real-time requirement level and to change the update cycle so that the higher the request rate, the shorter the update cycle of the parking lot information broadcast. system. 8. The parking lot information service system according to any one of claims 1 to 7, wherein the receiving means includes a digital broadcast channel in which parking lot information is broadcast and another digital broadcast channel. It is configured to be able to simultaneously receive both channels and the editing means constantly monitors the parking lot information of the selected parking lot in the received parking lot information, and based on the parking lot information of the selected parking lot, Equipped with a vacant information detection means for automatically detecting that there is a vacant space, when a signal indicating that the vacant space has occurred, on the display means displaying the received content of the other digital broadcast, The fact that a vacant space has occurred in the previously designated parking lot is displayed on the screen being displayed or by switching the displayed screen to a screen showing parking lot information. A parking lot information service system characterized by being constructed. 9. The parking lot information service system according to any one of claims 1 to 8, wherein a car navigation device for exchanging data is connected to the terminal device via an interface, and the terminal device is The car navigation device is configured to transmit the parking lot position data to the car navigation device through the interface, and the car navigation device performs route search and display from the current position to the position specified by the position data. A parking lot information service system characterized by being configured as follows. 10. The parking lot information service system according to claim 1, wherein the digital broadcasting station is a broadcasting station that performs digital broadcasting via an elliptical orbit satellite. A characteristic parking lot information service system. 11. Receiving means for receiving digitally broadcasted parking lot information, storage means for updating and storing the received parking lot information in accordance with the broadcast cycle, and parking information stored in the storage means, Each time the parking lot information is updated, it includes an editing unit that edits and outputs as display data based on a preset condition, a display unit that displays the display data on a screen, and an input unit that sets the condition, A mobile terminal device mounted on a mobile body. 12. The mobile terminal device according to claim 11, wherein the broadcast parking lot information data includes an identification code of each parking lot, the number of empty spaces, a storage capacity, latitude and longitude information of a location. The mobile terminal device, wherein the mobile terminal device is constituted by data, and other data including a parking lot name is stored in the storage means by using an identification code of each parking lot as a key. 13. The mobile terminal device according to claim 11 or 12, wherein the parking lot information broadcast is configured by attaching an identification code to each parking lot, and the editing means uses the identification code as a key to store the digital information. A mobile terminal device, which is configured to selectively output parking lot information of a specified identification code from broadcast reception data to the display means. 14. Any one of claims 11 to 13.
In the mobile terminal device according to the item 1, the editing unit is
The identification code is used as a key, and the information of the designated parking lot is selectively output from the digital broadcast reception data to the display means. In order to designate the parking lot, the terminal device has a parking lot. Code input mode to input the identification code of the keyboard from the keyboard, map selection mode to indicate the position on the map displayed on the screen and specify the parking lot in the vicinity, or preset input mode to specify the preset parking lot The mobile terminal device is provided with a function for selecting whether or not, and in the code input mode, an address search function for searching an address with the inputted identification code and a telephone number search function for searching a telephone number. . 15. The mobile terminal device according to claim 13 or 14, wherein the identification code is hierarchically assigned to a parking lot according to a region, and the mobile terminal device includes a position determination unit that determines a current position of the mobile unit. , The editing means,
A means for automatically determining the broadcast channels that broadcast the parking lot information of the parking lot from the current position of the mobile unit to the vicinity of the current position and the identification code group of those parking lots, and automatically receiving useful parking lot information A mobile terminal device provided. 16. The mobile terminal device according to any one of claims 11 to 15, wherein the editing means always stores the parking lot information of the selected parking lot in the received parking lot information. A vacant information detecting means for monitoring and automatically detecting from the parking lot information of the selected parking lot that there is a vacant space, and is configured to add the vacant information to the display data. Mobile terminal device. 17. The mobile terminal device according to any one of claims 11 to 16, wherein the receiving unit is a digital broadcast channel in which parking lot information is broadcast and another digital broadcast channel. It is configured to be able to simultaneously receive both of the above, and the editing means constantly monitors the parking lot information of the selected parking lot in the received parking lot information, and the parking lot information of the selected parking lot is vacant. When a signal indicating that there is an empty space is detected, the display means for displaying the received content of the other digital broadcast is provided with the empty information detecting means for automatically detecting the existence of the space. It is configured to display that a vacant space has occurred in a designated parking lot, by superimposing it on the displayed screen, or by switching the displayed screen to a screen showing parking lot information. A mobile terminal device characterized in that 18. Any one of claims 11 to 17.
In the mobile terminal device according to the item 1, the terminal device is configured to include a car navigation device that exchanges data with the terminal device through an interface, and the editing unit receives position data of a parking lot through the interface. The car navigation device is configured to transmit to the car navigation device, and the car navigation device is configured to perform route search and display from a current position of the moving body to a position specified by the position data. A mobile terminal device.