JPH0540899A - Vehicle position controller - Google Patents

Abstract

PURPOSE:To accurately grasp the present position of a vehicle at a point in a fixed area or in an accurate section and at the same time to know the traveling direction of the vehicle in an absolute azimuth. CONSTITUTION:A mobile station 1 detects the position of a vehicle which is momentarily changing and transmits the position data showing the present position of the vehicle in a dot to a base station 2 together with the vehicle identification data. The station 2 receives the data and superposes the position or each vehicle on a map showing the periphery of the relevant position through a display means 2b. Otherwise the station 2 shows the specific one of sections divided previously from a fixed area where the vehicle is included. Meanwhile the station 1 senses the earth magnetism to detect the traveling direction of the vehicle and generates the azimuth data. Then the traveling direction of each vehicle is shown on the means 2b of the station 2. In such a way, the display of taxi positions can be utilized for allocation of these taxis.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle position management device, and more particularly to a large number of vehicles such as taxi vehicles, home delivery vehicles, snowplow vehicles, etc. In order to effectively operate the vehicles, each vehicle is provided with a mobile station, and a control station as a base station is provided in a center that manages the plurality of vehicles. The present invention relates to a vehicle position management device that manages the position of the vehicle.

[0002]

2. Description of the Related Art Conventionally, as a device of this type, there is one which is made to manage the position of a taxi vehicle, for example.
The business area of a taxi is divided into several to several tens of blocks, each block is labeled with a symbol such as A, B ... N, and a small transmitter called a sign post is arranged at the center of each block. To do. The sign post continuously transmits a position group signal indicating the position of the installation point. A dedicated receiver for receiving the position group signal from the sign post is installed in the vehicle. This dedicated receiver has the function of receiving, decoding and storing the position group signal when the vehicle approaches the sign post.

When a vehicle moves away from one signpost near another signpost, it erases the memory of the previous signpost's position group signal and stores a new signpost's position group signal. In this way, each time the vehicle moves, the position group signal of the nearest sign post is stored. Further, the position group signal is stored after a certain period of time if there is no new signal.

On the other hand, a control device is arranged on the control station side.
This is provided with a district call button corresponding to the above-mentioned divided districts and a display for displaying the collected information, and when a customer orders a vehicle dispatch, the call button for the district is pushed. As a result, an area-specified polling signal is emitted via the transmitter of the control station, and this signal is received by all mobile stations. The position group signal stored in the mobile station matches the area of the polling signal from the control station, and the mobile station, which is an empty vehicle, automatically sends the vehicle number along with the movement data etc. via the in-vehicle communication device. Respond to the control station. In response to this, the control station displays the vehicle number on the display. The dispatch operator selects an appropriate vehicle from the displayed items and issues a dispatch command by voice call.

Conventionally, in such a device, when the ratio of the receiving area where the mobile station can receive the position group signal from the sign post is narrower than the area of the target area, the normal receiving area is several meters from the sign post. The range is 100m, but more than half of the mobile stations are out of the same coverage area,
There are no mobile stations in the target area, and ultimately the control station cannot collect data and cannot dispatch.

As a countermeasure against this, as described above, the mobile station within a fixed time after the position group signal from the nearest sign post cannot be received, stores the position group signal for the same fixed time, thereby It is usually authorized as a peripheral mobile station existing in the vicinity of, and the vehicle number is displayed on the display of the control station, and the vehicle is usually assigned for dispatch.
However, if the fixed time is set to be long, the mobile station often moves to a distant place in the same area or to a remote place outside the position group signal reception area from the sign post in another area. Even if data is collected by polling, the sensitivity of district data information for each mobile station will be reduced, which is not preferable.

Therefore, in Japanese Patent Laid-Open No. 60-89296, it is possible to variably set a fixed time for storing a position group signal in a mobile station. The time is short, for example, set to 30 seconds. Of course, it may be 0 seconds without providing a fixed time. When there are few empty vehicles such as in the evening or during rain, and there are no vehicles that can be dispatched in the area, the fixed time to be authorized as a peripheral mobile station is long, for example, set to 15 minutes so that the nearest area can be specified. What has been proposed is proposed.

Further, the mobile station receives a position group signal from the sign post to generate a position direction signal indicating that the mobile station is traveling in the direction of the sign post, and the control station causes the mobile station to move based on the position direction signal. In some cases, it is displayed by a symbol indicating the traveling direction from a specific point of.

[0009]

However, in the above-mentioned conventional apparatus, whether or not the vehicle is within the reception area of a few hundred meters emitted by the sign post, that is, the vehicle moves within a predetermined range around the sign post. There is a problem that it is not possible to accurately know at which point in a certain area the vehicle exists because only information about whether the station exists can be obtained.

Further, regarding a vehicle that has gone out of the reception area from the sign post, the distance from the sign post is indirectly estimated by managing the elapsed time after going out according to the situation. Since it is, it takes a lot of trouble to search for vehicles existing in the area,
It is not possible to know exactly if the vehicle is in a particular area.

Further, since the traveling direction of the vehicle is only determined at the time of receiving the position group signal from the sign post, there is a problem that the traveling direction of the vehicle cannot be accurately grasped in the absolute direction.

Therefore, in view of the above-mentioned conventional problems, it is a first object of the present invention to provide a vehicle position management device capable of grasping the current position of a vehicle at a point within a certain area.

Further, in view of the above-mentioned conventional problems, the present invention makes it possible to directly judge in which area the vehicle exists from the present position of the vehicle, and whether the vehicle exists in a specific area. The second object is to provide a vehicle position management device that can accurately determine whether or not it is.

Further, in view of the above-mentioned conventional problems, a third object of the present invention is to provide a vehicle position management device capable of knowing a current traveling direction of a vehicle by an absolute azimuth. I am trying.

[0015]

A vehicle position management device according to the present invention for solving the first problem is shown in FIG.
As shown in the basic configuration diagram of FIG. 1, a mobile station 1 is provided in each of a large number of vehicles scattered in a certain area and changing positions at all, and a control station 2 is provided in a center that manages the large number of vehicles. In the vehicle position management device, in which the control station 2 collects the information of the mobile station 1 and manages the position of the vehicle, the mobile station 1 detects the position of the vehicle that changes momentarily, Position data generating means 1a for generating position data indicating the current position as a point, and data transmitting means 1b for transmitting the position data generated by the position data generating means 1a to the control station 2 together with vehicle identification data for identifying the vehicle. Have and. The control station 2 includes a data receiving means 2a for receiving data transmitted by the data transmitting means 1b of the mobile station 1, a display means 2b, a map data storing means 2c for storing map data of the certain area, and Based on the position data and vehicle identification data received by the data receiving means 2a and the map data stored in the map data storage means 2c, the position of each vehicle is superimposed on the map around the position and the display means is displayed. It is characterized in that it has a display control means 2d to be displayed above and manages the vehicle position by the display of the display means 2b.

As shown in the basic configuration diagram of FIG. 1, the vehicle position management device according to the present invention for solving the above-mentioned second problem is scattered in a certain area and changes its position at random. The mobile station 1 is provided in each of the multiple vehicles, and the control station 2 is provided in the center that manages the multiple vehicles. The control station 2 collects the information of the mobile station 1 to manage the vehicle position. In the vehicle position management device, the mobile station 1 detects the position of the vehicle, which changes moment by moment,
Position data generating means 1a for generating position data indicating the current position of the vehicle and data transmitting means for transmitting the position data generated by the position data generating means 1a to the control station together with the vehicle identification data for identifying the vehicle. 1b and. The control station 2 is the data transmission means 1 of the mobile station 1.
data receiving means 2a for receiving the data transmitted by b;
A display means 2b, and a display control means 2d for displaying on the display means 2b which of the areas where the vehicle is divided into a plurality of areas in advance based on the position data received by the data receiving means 2b. And the vehicle position is managed by the display of the display means 2b.

As shown in the basic configuration diagram of FIG. 1, the vehicle position management device according to the present invention for solving the above-mentioned third problem is such that the mobile station 1 detects the geomagnetism to detect the traveling direction of the vehicle. It has an azimuth data generating means 1a ₁ for detecting and generating azimuth data, the data transmitting means 1b transmitting the azimuth data together with the position data, and the data receiving means 2a of the control station 2 together with the position data. It is characterized in that the azimuth data is received and the traveling direction of each vehicle is displayed on the display means 2b based on the azimuth data received by the display control means 2d by the data receiving means 2a.

[0018] The position data generating means 1a, and the azimuth data generating unit 1a _1, and a traveling sensing unit 1a ₂ for generating a distance pulse signal according to the running of the vehicle, the azimuth data generating unit 1a ₁ is The position data is generated based on the generated azimuth data and the traveling distance calculated by the distance pulse signal generated by the traveling detecting means 1a ₂ .

The mobile station 1 further has dynamic information generating means 1c for generating dynamic information indicating the state of the vehicle, and the data transmitting means 1b identifies the dynamic information generated by the dynamic information generating means 1c for identifying the vehicle. The information is transmitted together with the information, and the display control means 2d of the control station 2 causes the data reception means 2 to
It is characterized in that the movement of the vehicle is displayed on the display means 2b based on the movement information received by a.

The control station 2 has data transmission means 2e for transmitting polling data for instructing the mobile station 1 to transmit data, and the mobile station 1 has polling data transmitted by the data transmission means 2e. It is characterized in that it has a data receiving means 1d for receiving the data, and the data transmitting means 1b transmits the data in response to the polling data received by the data receiving means 1d.

The data transmitting means 2e of the control station 2 designates a range of area to transmit polling data, and the data transmitting means 1b of the mobile station 1 existing in the area of the designated range transmits data. It is characterized by

The mobile station 1 receives the correction point information receiving means for receiving the correction point information transmitted by the correction point information transmitting means 3 installed at a predetermined position within the certain area by a radio signal of the position of the short distance arrival. 1e and a first position correcting means 1f for correcting the position data generated by the position data generating means 1a according to the correction point information received by the correction point information receiving means 1e.

It is characterized in that the vehicle is a taxi vehicle and the display of the display means 2b is used to determine the taxi vehicle to be dispatched to the customer who requests the vehicle dispatch.

The control station 2 is characterized by transmitting polling data by designating a certain range centered on the position of the customer requesting vehicle allocation and the movement of the taxi vehicle.

The control station 2 has a customer data storage means 2f which stores customer data including customer location data indicating the location of a customer within a certain area, and the customer data storage means 2f.
It is characterized in that the fixed range is determined using the position data of the customer data stored in.

The control station 2 transmits data indicating that and the customer position data to the taxi vehicle for which the vehicle allocation is decided, and the mobile station 1 operates the dynamic information generating means 1c for generating dynamic information indicating the state of the vehicle. Further, it has the customer position data, and corrects the position data generated by the position data generating means 1a when the movement information from the movement information generating means 1c becomes an actual vehicle based on the received customer position data. It is characterized by having a second position correcting means 1g.

The control station 2 has an automatic vehicle dispatch determining means 2g for automatically determining a taxi vehicle to be dispatched based on the position data from the mobile station 1, the movement information and the customer position data. There is.

[0028]

In the above structure, the position data generating means 1a of the mobile station 1 provided in each vehicle detects the position of the vehicle, which changes moment by moment, and generates position data indicating the current position of the vehicle by dots. The data transmission means 1b transmits the position data generated by the position data generation means 1a to the control station 2 together with the vehicle identification data for identifying the vehicle.

On the other hand, the data receiving means 2a of the control station 2 provided in the center for managing a large number of vehicles is the mobile station 1
The data transmitting means 1b receives the data transmitted, and the display controlling means 2d receives the position data and the vehicle identification data and the map data storing means 2 received by the data receiving means 2a.
Based on the map data stored in c, the position of each vehicle is superimposed on the map around the position and displayed on the display means, and the vehicle position is managed by the display of the display means 2b.

Therefore, even if a large number of vehicles are scattered in a certain area and change their positions in a completely irregular manner, all desired vehicles are superposed on the map of the certain area on the display means 2b in the center. It is displayed at the correct position so that the position of each vehicle can be accurately grasped.

Further, the display control means 2d of the control station 2 indicates on the display means 2b which of the areas where the vehicle is divided into a plurality of predetermined areas based on the position data received by the data receiving means 2b. Display means 2b
Since the vehicle position is managed by the display of, it is possible to accurately know which vehicle exists in the desired area for each of all the desired vehicles.

Further, the azimuth data generating means 1a ₁ provided in the mobile station 1 detects the geomagnetism to detect the traveling direction of the vehicle to generate azimuth data, and the display means of the control station 2 which has received this azimuth data. Since the traveling direction of each vehicle is displayed on 2b, the control station 2 can accurately grasp not only the position of each vehicle but also the traveling direction.

The position data generating means 1a generates the azimuth data generated by the azimuth data generating means 1a ₁ and the travel detecting means 1a.
₂ generates position data based on the traveling distance calculated by the distance pulse signal generated according to the traveling of the vehicle, so that the azimuth data can be easily obtained from the position data generating means 1a. ing.

Furthermore, the dynamic information generating means 1c provided in the mobile station 1 generates the dynamic information of the vehicle and displays the dynamic information of the vehicle on the display means 2b of the control station 2 which has received this dynamic information. Therefore, the control station 2 can accurately grasp not only the position of each vehicle but also the movement.

Further, the data transmitting means 2e of the control station 2 is
Since the polling data for instructing the data transmission to the mobile station 1 is transmitted, and the data transmitting means 1b of the mobile station 1 transmits the data in response thereto, when the control station 2 needs it, Position data and the like can be collected from the vehicle.

Moreover, the polling data is transmitted by designating the range of the area, and the data transmitting means 1b of the mobile station 1 existing in the area of the designated range transmits the data. The station 2 can collect position data of vehicles in a necessary area and the like.

Further, the correction point information receiving means 1e of the mobile station 1 transmits the correction point information by the correction point information transmitting means 3 installed at a predetermined position within a certain area by a radio signal of a short-distance reaching position. The position data generating means 1a detects the position because the first position correcting means 1f corrects the position data generated by the position data generating means 1a based on the correction point information received by the correction point information receiving means 1e. Even if an error occurs in the generated position data, it is corrected to an accurate one each time it passes a specific point.

In particular, since the position of the taxi vehicle is displayed on the display means 2b and is used to determine the taxi vehicle to be dispatched to the customer who requests the vehicle allocation, the taxi vehicle position can be accurately grasped to be efficient. It is possible to arrange various vehicles.

Moreover, the customer data storage means 2 of the control station 1
In f, customer data including customer position data indicating the position of the customer within a certain area is stored, and this customer data storage means 2f
By using the location data of the customer data stored in, the polling data is sent by designating a certain range centered on the location of the customer requesting dispatch and the movement of the taxi vehicle. Vehicles can now be found accurately and efficiently.

Also, based on the customer position data transmitted to the taxi vehicle to which the control station 2 has decided the vehicle allocation, the second position correcting means 1g causes the dynamic information generating means 1 to operate.
Since the position data is corrected when the dynamic information from c becomes the actual vehicle, the position can be surely corrected every time the customer places a vehicle by dispatching, and more accurate vehicle position management can be performed. It is like this.

Further, the vehicle allocation automatic determining means 2g of the control station 2
However, since the taxi vehicle to be dispatched is automatically determined based on the received position data and movement information and the customer position data, it is possible to save labor in the dispatch work.

[0042]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicle position management device according to the present invention applied to a taxi dispatch management system will be described below with reference to the drawings.

[System Configuration] FIG. 2 is a conceptual diagram showing the overall configuration of a taxi dispatch management system. A mobile station 1 is provided in each of a number of taxi vehicles owned by taxi companies, and a taxi company dispatch center is provided. Is provided with a control station 2.

The present system is for carrying out operations such as vehicle allocation and vehicle management for a predetermined rectangular area (business area) E of, for example, 50 km square. Normally, the mobile station 1 is located at any place in the business area E. Scattered in, it changes its position at random. Then, usually, the business area E is determined by determining the (X, Y) coordinates of the exit position (vehicle dispatch center) of the taxi vehicle. The mobile station 1 of the taxi vehicle traveling in the business area E has its own coordinates at the upper left corner of the business area E as (0, 0), and when communicating with the center, its position and traveling direction. The control station 2 of the center is notified of such information. The center performs vehicle allocation and vehicle management based on these vehicle information. The control station 2 also has a database of customer data including position data indicating the positions of customers existing in the business area E, and the customer position based on this position data is represented by the same position coordinates as the mobile station 1. There is. Also,
Correction for correcting the position of the mobile station 1 by a wireless signal such as infrared rays that reaches only a narrow range at a specific place in the business area E such as a road where a taxi vehicle frequently passes, a station, a gas station, etc. A sign post 3 is installed as a correction point information generating means for generating point information.

The area within the business area E is divided into an arbitrary number (up to 99) of areas e depending on the circumstances of the area, and the unit of division is 200 m, for example, 200 m × 200 n (m, n).
It is preset to an arbitrary size of ≧ 1), and the dispatch business is performed based on this divided area e. A number is given to each area e, and the range is defined by the coordinates X1, Y1 and X2, Y2 of the two diagonal points at the upper left and lower right. This division should be done so that railway lines, rivers, expressways, etc. are not located in the center of the district, and that they are as close to the boundary line as possible.

[Configuration of Mobile Station] The mobile station 1 has a control device main body 11 configured as shown in FIG. 3 and including a central processing unit (CPU) that operates according to a predetermined control program. The control device main body 11 includes, via a sensor controller 12a, a azimuth sensor 12b serving as azimuth data generating means for detecting geomagnetism to detect a traveling direction of the vehicle and generating azimuth data, and a distance depending on traveling of the vehicle. A traveling sensor 12c and an angular velocity sensor 12d as traveling detecting means for generating a pulse signal are connected.
The azimuth sensor 12b is composed of a geomagnetic sensor that detects the geomagnetism and measures the absolute azimuth based on magnetic north. The azimuth sensor 12b generates an azimuth signal according to the absolute azimuth, and the travel sensor 12c responds to the taxi vehicle traveling a predetermined distance. Generate one range pulse signal. The angular velocity sensor 12d detects an angular velocity generated each time the traveling direction of the taxi vehicle changes, and generates an angular velocity signal corresponding to the angular velocity.

The sensor controller 12a inputs the distance pulse signal from the traveling sensor 12c to the control device main body 11, and at the same time, outputs the azimuth signal from the azimuth sensor 12b according to the angular velocity signal from the angular velocity sensor 12d.
Controls whether to input 1. This is because when the output of the azimuth sensor 12b is disturbed due to the disturbance of the geomagnetic field, such as when traveling near a magnetic substance such as a railway vehicle, it is ignored.

The control device main body 11 which receives the azimuth signal from the azimuth sensor 12b and the distance pulse signal from the travel sensor 12c detects the absolute azimuth of the taxi vehicle based on these signals, and at the same time detects the current taxi vehicle. The position coordinates are obtained by calculation, these are stored in a non-volatile memory, and control is performed to transmit these data to the control station 2 as necessary. Further, the main body of the control device detects the traveling and stop data of the vehicle and the traveling distance, and controls the transmission of these data to the control station 2 as necessary.

The control device main body 11 is also connected with a wind sign 13b for displaying the movement of the taxi vehicle in response to the tariff operation of the taxi meter 13a. This is controlled to be transmitted to the control station 2 as needed.

The control device main body 11 has an operation panel 14 which will be described in detail later, an emergency switch 15 which is turned on when transmitting emergency information of a crew member of a taxi vehicle to the control station 2, and a sales office (not shown) for position correction which will be described later. The optical receivers 16 for receiving the position correction information from the optical transmitters attached to the sign posts 3 provided at various places in the area and correcting the positional information of the taxi vehicle are respectively connected, and the keys on the operation panel 14 are connected. Control is performed to input an input signal generated by operation, an emergency signal generated by turning on the emergency switch 15, and a signal received by the optical receiver 16.

A wireless device 17c is connected to the control device main body 11 via a modem (modulator / demodulator) 17b for performing wireless communication with the control station 2 by the antenna 17a.
7b includes a microphone 17 for making a wireless call with the control station 2.
d is connected.

The taxi meter 13a is also connected to the control device main body 11 via an interface (I / F) 13c.
Is connected to input various index data from the taximeter 13a. In addition, an external output interface (I /
F) Taxi time series data collection device 18 via 18a
b and the IC card reader / writer (R / W) 18c are connected to each other so that data writing to the IC card 18d and data reading from the IC card can be performed.

The modem 17b converts the data collected by the function of the control device body 11 described above to wirelessly transmit it to the control station 2, and the vehicle number and company code set for each taxi vehicle are stored therein. Is set in. The modem 17b independently determines whether or not the vehicle number designating data request sent from the control station 2 is applicable, and if it is applicable, responds to the data by the microphone 17b.
When a microphone press switch (not shown) of d is pressed, the vehicle number data is transmitted to the control station 2, or the same data is retransmitted when the data transmission between the taxi vehicle and the control station 2 fails, Alternatively, the control station 2 allocates slot numbers and the like for fair automatic vehicle allocation.

The wireless device 17c receives data controlled by the main body 11 of the control device from the modem 17b and transmits the data to the wireless device of the control station 2 and also dispatches a vehicle by voice from the control station 2 (customer name, route, etc.). ) Is monitored. Radio 17c
If the operation panel 14 and the emergency switch 15 are used, it is not necessary to use the microphone 17d, but as usual, a voice call can be made by using the microphone 17d.

The details of the operation panel 15 will be described below with reference to FIG. On the operation panel 15, the "distribute" key 15
a, "resend" key 15b, "call" key 15c, "standby" key 15d, "rest" key 15e, "temporary empty" key 15f, "C" key 15g, "S" key 15h, "0"
~ In addition to the numeric keypad 15i of "9", a two-digit number display section 1
5j and a buzzer 15k are provided. Further, a lamp 15m is provided on each of the "distributed" key 15a, the "call" key 15c, the "standby" key 15d, the "rest" key 15e, and the "temporary empty" key 15f.

When the vehicle dispatch instruction is received from the control station 2, the "vehicle dispatch" key 15a sounds the buzzer 15k and the lamp 15
m is turned on, but if you understand it, press this to stop the buzzer 15k from ringing and turn on the lamp 1
Turn off 5m.

The "re-send" key 15b is pressed to request the voice command from the control station 2 for the customer name and place again. The "call" key 15c is used to stop the ringing of the buzzer 15k and deactivate the lamp 15m when the control station 2 calls by designating the vehicle number and the buzzer 15k sounds and the lamp 15m lights up. The light is turned on, and then the voice call using the microphone 17d can be performed.

The "standby" key 15d is pressed to turn on the lamp 15m when the taxi vehicle is on standby. The standby state is released when the "standby" key 15d is pressed again, the "rest" key 15e is pressed, or when the taximeter is in the fare mode.

The "rest" key 15e is pressed to turn on the lamp 15m when the taxi vehicle is in a rest state. This break state is released when the "break" key 15e is pressed again, the "standby" key 15d is pressed, or when the taxi meter is in the fare mode.

The "temporary empty" key 15f is used by the customer.
Turn on 5m.

The ten keys 15i of "0" to "9" are used to input the code (destination code) of the area where the actual vehicle is vacant, and the "S" key 15h is used to determine this input. The "C" key 15g is used respectively to correct this input, and the destination code input by the ten keys 15i is displayed on the display unit 15j.

As shown in FIG. 5, the control device main body 11 has a ROM 11a ₁ storing a control program and a RAM 11a storing various data generated in the control process.
_In addition to the CPU 11a incorporating ₂ therein, it has the above-mentioned nonvolatile memory 11b. The RAM 11a ₂ has various flag areas and data storage areas as shown in FIG. In addition, as shown in FIG. 7, a position data storage area in which position data created by detecting the position of a taxi vehicle which changes every moment, and a sign post number and its position data are written in the nonvolatile memory. A sign post position data storage area and the like are formed.

[Configuration of Control Station] The control station 2 is configured as shown in FIG. 8 and has a computer main body 21 composed of a personal computer. This computer main body 21
Has a memory (not shown) as a map data storage means for storing the map data of the business area E. In the computer body 21, a dedicated keyboard 22 dedicated to the vehicle allocation management system, a vehicle allocation CRT 23 that displays a vehicle allocation screen,
A map CRT 24 for displaying a map screen and a customer management dedicated computer (not shown, having a keyboard and a CRT) 25 are connected. The customer management-dedicated computer 25 is used for almost all residents and companies in the business area E in order to use it for vehicle allocation and customer management.
It has a built-in memory (not shown) that stores a database of customer data including address, name, telephone number, etc., including position data indicating the customer's position.

A radio 26c is connected to the computer main body 21 via a modem (modulator / demodulator) 26b for performing radio communication with the mobile station 1 by an antenna 26a.
A microphone 26d is connected to the modem 26b to make a wireless call with the mobile station 1.

(Keys of Dedicated Keyboard) The dedicated keyboard 22 is provided with a district selection key for selecting a district of a customer position, a P key for all cars used to start or stop polling for all cars, and a manual dispatch. A dispatch request key used when issuing a dispatch request, a direct dispatch key used when dispatching directly by specifying the vehicle number, a dispatch cancellation key used when canceling customers waiting for dispatch, a taxi vehicle that has been dispatched ) To cancel the vehicle,
Customer key used when selecting customers from the queue for dispatching, Call key used when making individual calls, Tracking key used when instructing tracking of a specific taxi vehicle,
A tracking cancel key used to stop tracking, a dispatch completion key used to complete dispatching, a real vehicle key used to manually change a taxi vehicle in the intercepting state to a real vehicle, and a dispatch screen for dispatching Vehicle allocation key used to display, all vehicle keys used to display all vehicle screens by vehicle number, map display key used to display map screen, standby key used to operate standby vehicles, unknown vehicle Unknown key used when operating as a target, NG key used when operating as a target for NG cars, page key used for switching screens, automatic / manual key for switching between automatic / manual when allocating vehicles , A stop key used to temporarily stop the vehicle allocation process, a forced correction key used for forced position correction processing, a numeric keypad used when entering numbers such as vehicle numbers, etc. Double-press the key to shift it so that it can be used in the shift state, the mask key to specify the mask car, the company key to specify the company code, the large, medium and small car models. Large, medium, and small keys for specifying are provided.

[Function of Control Station] By executing a predetermined program, the computer main body 21 of the control station 2 has a vehicle polling function, a vehicle allocation function, a display function, a map information display function, a vehicle management function, It has a customer management function and a counting function.

The vehicle polling function includes all vehicle polling for all taxi vehicles, district polling for taxi vehicles scattered in a specific area, vehicle tracking for tracking a specific taxi vehicle, and taxi vehicle for emergency calls. There are functions of automatic emergency car tracking that automatically tracks the vehicle and voluntary vehicle call reception that receives a call from a taxi vehicle.

The vehicle dispatch function includes a vehicle dispatchable vehicle search that searches for a taxi vehicle that can be dispatched, a vehicle dispatch order determination that determines a vehicle dispatch order, a vehicle dispatch instruction and cancellation that performs a vehicle dispatch instruction and cancellation thereof, a reservation vehicle dispatch and a priority vehicle dispatch processing. Reservation / priority dispatch,
There are functions for managing a taxi vehicle that is in the process of intercepting a call, retransmitting a voice that processes a voice retransmit, and an individual call for individually calling a taxi vehicle.

The display function displays all taxi vehicles by vehicle number, all vehicle numbers by area, all taxi vehicles by area, and information for managing taxi vehicles. There are various functions for displaying vehicle management information.

The map information display function has functions of displaying all business areas, displaying all business areas, displaying specific areas showing specific areas, and displaying vehicle movements showing movements of taxi vehicles. Vehicle management functions include missing vehicles, NG
(Failure) There are functions for managing vehicles and vehicles in standby and vehicle position correction.

In the customer management function, customer registration / registration for registering data about a new customer or correcting registration data is performed.
Correction, customer search to search for customers, direct mail (D
Each function of M) is issued. The aggregating function includes vehicle dispatch record aggregating function, daily report, monthly report vehicle, and customer-specific aggregating function.

[Schematic Operation of Vehicle Distributing System] Each mobile station 1 of this system constantly creates data indicating the position and movement of a taxi vehicle. On the other hand, the control station 2 has customer information including the locations of many customers in the business area E in advance, and when receiving a vehicle dispatch request from a customer,
For example, the customer information is retrieved by using the customer's telephone number as a code, the area where the mobile station is polled is determined from the location of the customer, and the area polled is applied to the determined area. Among the mobile stations 1 that have received this area poll, the mobile station 1 existing in the area transmits data regarding its position, movement and vehicle number to the control station 2 in response to this area poll. The control station 2 determines a taxi vehicle to be dispatched based on the received data, and transmits a dispatch instruction to the determined taxi vehicle. Upon receiving this, the mobile station 1 gives a response that the vehicle allocation instruction is accepted, and then, by voice, indicates the customer name, the route, etc. to complete the vehicle allocation.

The control station 2 polls the mobile stations 1 of all taxi vehicles scattered in a predetermined taxi company business area, that is, all-vehicle polling, at an arbitrary time, and the mobile station 1 polls the polled mobile stations 1. Check the conditions of, and if applicable, respond with data showing position, movement and vehicle number, and control station 2 which received this response
Saves that data. This stored data retrieves customer information when a customer requests a vehicle dispatch by phone, and determines a taxi vehicle suitable for vehicle dispatch based on the retrieved customer information and taxi vehicle dynamics and position data.
A dispatch instruction is transmitted to the mobile station 1 of the determined taxi vehicle, and when the taxi vehicle receiving this instruction responds with the approval, the control station 2 displays a message to that effect and the dispatch is completed.

[Data Format] A data format for transmitting data between the mobile station 1 and the control station 2 for performing the system operation outlined above will be described below with reference to FIGS. 9 to 25. Has been defined.

Generally, the format (FM1) of data transmitted from the control station 2 to the mobile station 1 is set as shown in FIG. 9, and conversely, the format of data transmitted from the mobile station 1 to the control station 2 is set. (FM2) is set as shown in FIG.

FM1 is a DLE consisting of 10H, 02H
, An 8-byte information part that is transmission data to the mobile station 1, a DLE including 10H, and an E including 03H.
TX and horizontal parity BCC. Information section is D
Company code consisting of 3 bits from _{0 to} D ₂ and D _{3 to} D ₇
And information data consisting of a data ID consisting of 5 bits. The information section also includes 6 bytes of individual information, and 01H to FFH are assigned when a vehicle number is specified, and area expansion, group polling, elapsed time, index data, and an extension of individual information for special vehicle allocation. Have.

FM2 is a DLE consisting of 10H, 02H
STX, 00H empty, 8-byte information part that is transmission data to the control station 2, and 10H DLE, 03
It has an ETX of H and a horizontal parity BCC.
The information part has a company code consisting of 3 bits D _{0 to} D ₂ , information data consisting of a data ID consisting of 5 bits D _{3 to} D ₇ , a vehicle number, and 6-byte individual information.

The data ID is defined as shown in the table below.

[Table 1]

11 to 19 show a concrete example of the FM1. In the vehicle allocation request of FIG. 11, information data is specified in the 3rd byte, a vehicle number is specified in the 4th byte, a response waiting time of 100 msec unit in the 5th byte, and 16m per bit in the 6th byte.
The lower X (L) of the X coordinate of the customer position, the upper X (H) of the X coordinate of the customer position and the lower Y of the Y coordinate represented by the 7th byte.
(L), the upper Y of the Y coordinate of the customer position at the 8th byte
(H), 9th byte and 10th byte are set to empty. In the individual call request of FIG. 12, 5 to 10
It is the same as the vehicle allocation request except that the sky is set for each byte. In both formats above, 10
In the empty of the byte, 06H is set as ACK data at the time of answerback to the acknowledge signal from the mobile station 1.

In the area polling shown in FIG. 13, the designated destination code and the elapsed time designation for designating the unit of the elapsed time are designated at the 4th byte, and the start points X1, Y1 of the coordinates for designating the polling range using the 4 bytes 6-9. And end points X2, Y2, 1
The designated dynamic code is set at the 0th byte.

In the individual polling request (for tracing) of FIG. 14, information data is specified in the 3rd byte, and a vehicle number is specified in the 4th byte.
Response wait time at the 5th byte, elapsed time specified at the 6th byte, empty at the 7th byte, specified dynamic call code at the 8th byte, 1 minute rest NG time limit per bit at the 9th byte, 10th byte 1 minute per bit for engine NG
Each time limit is set. In addition, the mobile stations that have exceeded the time limits of 9 and 10 bytes make dynamic calls,
00H has no limit. In the designated dynamic call code of the 8th byte, the designated bit is "1".

In the group polling request (for polling all vehicles) of FIG. 15, information data is specified in the 3rd byte, elapsed time is specified in the 4th byte, response waiting time is specified in the 5th byte, vehicle number is specified in the 6th byte (small), Car number specified (large) at the 7th byte,
The designated dynamic call code is set in the 8th byte, the rest NG time limit is 1 minute per bit at the 9th byte, and the engine NG time limit is 1 minute per bit at the 10th byte.

In the forced position correction of FIG. 16, the information data is set at the 3rd byte, the vehicle number is specified at the 4th byte, the vehicle position is set at the 5th to 7th bytes, and the sky is set at the 8th to 10th bytes.

In the elapsed time request (group polling) shown in FIG. 17, information data is specified at the 3rd byte, a response waiting time is specified at the 5th byte, a vehicle number is specified at the 6th byte (small), and a vehicle number is specified at the 7th byte (large). ), A unit time is designated at the 9th byte, and nulls are set at the 4th, 8th, and 10th bytes.

In the index data request (group polling) of FIG. 18, information data is specified in the 3rd byte, response waiting time is specified in the 5th byte, vehicle number is specified in the 6th byte (small), and vehicle number is specified in the 7th byte (large). ) Designated index data at the 10th byte,
Empty is set at the 4th, 8th, and 9th bytes, respectively.
The index designation data is composed of designated blocks of 1 to 3, and the number of business times (operating times), the number of actual vehicles (actual times), the number of times of vehicle arrivals (waiting times), and the number of times of taxation (tax times) are assigned to block 1, and block 2 Is the driving fee (running fee), business fee (operating fee),
A pick-up fee (pick-up fee) is assigned, and the block 3 is assigned business hours, business travel times (running hours), and travel times.

In the special vehicle allocation request of FIG. 19, information data is placed in the 3rd byte, empty in the 4th byte, response waiting time in the 5th byte, customer position in the 6th to 8th bytes, dynamic specification in the 9th byte, and 10 bytes. The sky is set to each eye. In the empty of the 10th byte, 06H is set as ACK data at the time of answerback to the acknowledge signal from the mobile station 1.

Incidentally, with respect to various request data from the mobile station 1 for emergency setting, emergency release, acknowledgment response, voice affair, and dynamic call origination, 8-byte received data is transmitted as it is to the mobile station 1 as response data.

20 to 25 show concrete examples of the FM2. In the emergency setting request of FIG. 20, the information data is in the third byte, the vehicle number is in the fourth byte, the vehicle position is in the fifth to seventh bytes,
Dynamic code at 8th byte, elapsed time at 9th byte, 10
The destination code and direction are set at the byte. In the emergency release request, the voice resending request, the dynamic call request, the district polling response data, the individual polling response data, and the group polling response data shown in FIG. 21, the emergency setting request shown in FIG. Is the same as.

In the consent response request of FIG. 22, information data is in the third byte, vehicle number is in the fourth byte, vehicle allocation, calling, cancellation, special vehicle allocation in the fifth byte, and empty in the sixth to tenth bytes. It is set. In the elapsed time response data of FIG. 23, the information data is in the third byte, the car number is in the fourth byte, the vacant vehicle is in the fifth to tenth bytes, the waiting, the break, the vehicle is waiting,
The elapsed time of the actual vehicle and the stoppage of the running are set respectively. In the index data response data of FIG. 24, information data is set at the 3rd byte, a vehicle number is set at the 4th byte, and designated block data is set at the 5th to 10th bytes. In the microphone press data of FIG. 25, information data is set at the 3rd byte, a car number is set at the 4th byte, and an empty is set at the 5th to 10th bytes.

The time slot number of the response data
In accordance with the vehicle number designation of each request and the contents of the DIP switch for vehicle number setting, 1 is assigned to the smallest vehicle number designated by the vehicle number as 1 in order from the smallest vehicle number by the modem.

[Vehicle Polling Function] (All Vehicle Polling) The all vehicle polling function of the vehicle polling function of the computer main body 21 is used to sequentially poll all business vehicles and grasp their dynamics.
There are the following two. One of them is position information request polling for obtaining the vehicle position and direction of all vehicles, and the other is elapsed time request polling.

All vehicle polling is repeatedly started and stopped by operating the P key of all vehicles. In all-car polling, all cars are operated by operating only the P key. In all-car polling, polling is performed for items specified in advance, and when both position information and elapsed time are specified, position information and elapsed time are grouped. Poll in the order of. Further, if the 0 key and the P key of all vehicles are operated while polling of all vehicles is stopped, polling of both position information and elapsed time is started regardless of the setting contents, and the order is the same as in the above case. If the 1 key and the P key of all vehicles are operated while all vehicle polling is stopped, polling of only the position information is started regardless of the setting contents. If the 2 key and the P key for all vehicles are operated while polling for all vehicles is stopped, polling for only the elapsed time is started regardless of the settings. If the P key for all cars is pressed while polling for all cars, polling for all cars is stopped.

In the above-mentioned all-vehicle polling, since information of up to n taxi vehicles can be obtained by one inquiry from the control station 2, n vehicles are sequentially polled from the vehicle with the smallest vehicle number (group polling). ). 1
The number of times polling is performed, the interval between groups, and the interval between polling of all vehicles and the next group polling can be set in advance. The polling start vehicle number when restarting after the stop can be started from the first vehicle number or the vehicle number next to the last vehicle number when the vehicle is stopped.

By polling, from the taxi vehicle, the vehicle position (positional information polling), the heading of the vehicle (positional information polling), the vehicle dynamics (positional information polling), the destination code (positional information polling), the dynamical movement elapsed time (positional information). Information polling and elapsed time polling) are obtained, and the type in () indicates the type of polling.

The vehicle position is obtained by the X and Y absolute coordinates where the upper left corner of the business rectangular area is (0, 0), and the unit is m, and the accuracy is a multiple of 16 m, for example. The traveling direction of the vehicle is obtained by dividing the traveling direction of the vehicle into eight directions.

The vehicle dynamics is the dynamics of the vehicle at the time of polling, and is composed of an empty vehicle, a temporary empty vehicle, a stand-by, a break, an oncoming vehicle, an actual vehicle, and an engine off. An empty vehicle is a vehicle without a customer, a temporary empty vehicle is with a customer, but it will soon become an empty vehicle The "temporary empty" key is operated, and the standby is in the standby state The "standby" key is operated Vehicles, breaks are vehicles in which the "break" key is operated in the break state, vehicles that are in the process of intercepting vehicles, vehicles that are in the fare or premium state where the customer is riding, vehicles whose engine is off when the engine is off The respective states of are shown.

The destination code is obtained with the district code of the destination pushed by the crew when the destination code is valid. The dynamic time elapsed time is the time during which the dynamic has continued since becoming a specific dynamic, and the rounding unit of time is 1, 5, 10 ...
It can be set to 60 seconds, and only the elapsed time of one dynamic can be obtained by location information polling. Elapsed time polling allows each elapsed time to be obtained when dynamics coexist. The vehicle information obtained by the all vehicle polling is displayed on the all vehicle screen by vehicle number, the all vehicle screen by area, or the map screen.

(District polling) The above-mentioned district polling is used to grasp the vehicle movement in a rectangular area centered on a designated point (customer position, etc.). There are two.

The customer-centered polling is for polling a predetermined square area centered on the customer, and the size of the square area to be polled is set for each district according to the scale of the district, business scale, and the like. It However, the vertical and horizontal sizes of the rectangle are multiples of 200 m. This polling is executed when the customer coordinates are registered in the customer database. The area-centered polling is for polling only a specific area that has been divided into areas in advance, and this polling is executed when the area selection key is pressed.

The behavior of the vehicle to be polled can be designated at the time of polling, and can be designated by any combination of an empty vehicle, a temporary empty vehicle, a standby, a break, an oncoming vehicle, an actual vehicle, and an engine off. When the destination code is valid, the area where the customer is can be specified as the destination code. At this time, the vehicle with the specified destination code is polled regardless of whether it is in the rectangular area specified at the time of polling. Consider it a car.

In the customer-centered polling, when there is no target vehicle in the polling executed first, the rectangular area to be polled is enlarged and the polling is performed again. The expansion unit is also set for each district according to the structure of the district. In the area-centered polling, if there is no target vehicle in the first polling, the area polling of another area is executed. At this time, the number and order of polling in another area is set. If there is no response vehicle even if the area is expanded, the dynamics can be expanded and polled again, and how the dynamics can be expanded can be set in advance.

By the area polling, the vehicle position, the traveling direction of the vehicle, the vehicle movement, the movement elapsed time, and the destination code are obtained. The vehicle position is obtained by X, Y absolute coordinates with the upper left corner of the business rectangle area as (0, 0), and the unit is m. The traveling direction of the vehicle is the traveling direction of the vehicle divided into eight directions. The vehicle dynamics are the dynamics of the vehicle at the time of polling, and are composed of empty cars, temporary empty cars, waiting, breaks, pick-up cars, actual cars, and engine off. The dynamic transit time obtains the transit signal with the highest priority. The unit is the same as the elapsed time for polling all cars. The destination code is obtained with the district code of the destination pushed by the crew when the destination code is valid.

In this district polling, one request made
Since the movements of all taxi vehicles that satisfy the conditions are sequentially grasped, high-speed and efficient dispatch work can be realized. In addition,
The vehicle information obtained by the district polling is displayed on the vehicle number-by-vehicle screen, the district-by-vehicle screen, or the map screen each time.

[Vehicle Allocation Function] The vehicle allocation method using the vehicle allocation function of the computer main body 21 is roughly classified into two types: automatic vehicle allocation and manual vehicle allocation. In automatic vehicle allocation, the customer at the top of the vehicle allocation queue is set as a vehicle allocation target customer, and a vehicle that can be allocated to the customer is automatically searched for, and the vehicle allocation target vehicle is displayed. In other words, it automatically processes the selection of customers and the search / display of vehicles that can be dispatched according to the order of the dispatch queue.
Also, depending on the setting, it is possible to automatically issue a dispatch instruction. In manual dispatch, an operator selects a customer from a dispatch queue and dispatches the customer, and thus the order of the customer waiting for dispatch can be changed and dispatched.

In order to search for vehicles that can be dispatched, first, the customer position is specified from the area selection key waiting for vehicle dispatch or the customer information in the customer database. Using the data obtained by polling all vehicles or the district polling function, a vehicle that can be dispatched is searched within a square area centered around the specified customer position or within a specific area. At this time, usually only taxi vehicles that are in an empty state are searched, but taxi vehicles other than empty vehicles can also be included in the search target.

The search for vehicles that can be dispatched can be performed by using either or both of the data obtained by polling all vehicles and the data obtained by district polling. Which order and which order is used is preset. It

When searching for vehicles that can be dispatched using all-car polling data, a limitation is imposed on the data collection time. This time is preset. That is, only the data collected within the specified time, which is traced back from the current time, is the search target. There are two methods for retrieving all vehicle polling data: one for customer areas and one for all business areas.

The customer area target is a method of searching for vehicles that can be dispatched mainly in the area where the customer exists, and is searched in the following order. First, in the case of prioritizing area expansion, customer presence area + set-specified dynamic vehicle search-different area + set-specified dynamic vehicle search (set count) -customer existing area + expanded dynamic (destination code) vehicle search-different District + expansion dynamics (destination code) Vehicle search (set number) -Waiting for dispatch. In the case of dynamic expansion priority, search for customer existing area + set designated dynamic vehicle-search for customer existing area + expanded dynamic (destination code) vehicle-search for another area + expanded dynamic (destination code) vehicle (set count)-
Waiting for dispatch.

The target of all business areas is a method of searching for vehicles that can be dispatched to all business areas regardless of the customer's area.
Search in the following order: In other words, all business areas + search for set-specified dynamic vehicles-search for all business areas + expanded dynamic (destination code) vehicles-waiting for dispatch.

When a vehicle dispatchable vehicle is searched using the data of the district polling, if there is a vehicle dispatching request, the vehicle polling is conducted by performing the area polling centering on the position of the customer or a specific district at that time. There are two methods, customer-centric polling and district-centric polling.

In the customer-centered polling, vehicles that can be dispatched are searched by polling centering on the customer position. This is used when dispatching a customer with customer coordinates, and searches in the following order. First, in the case of prioritizing area expansion, set polling area + search for set specified dynamic vehicle-expansion polling + search for set specified dynamic vehicle (set times) -set polling area + expanded dynamic vehicle search-expanded polling + expanded dynamic Vehicle search (set times) -Waiting for dispatch. In the case of the dynamic expansion priority, the set polling area + the search for the set specified dynamic vehicle-the set polling area + the search for the expanded dynamic vehicle-the expanded polling + the search for the expanded dynamic vehicle (the set number of times) -the vehicle is on standby.

In the area-centered polling, vehicles that can be dispatched are searched by polling in the area where the customer exists. Used when dispatching to a customer who does not have customer coordinates or when pressing the area selection key, and searches in the following order. First, in the case of prioritizing area expansion, search for a designated area + set designated dynamic vehicle-search for another area + set designated dynamic vehicle (set times) -designated area + search for expanded dynamic vehicle-other area + expanded dynamic vehicle Search (set times) -wait for dispatch. In the case of dynamic expansion priority, search for designated area + set specified dynamic vehicle-specified area + search for expanded dynamic vehicle-search for another area + expanded dynamic vehicle (set times)
-Waiting for dispatch.

In any of the search methods described above, it is possible to terminate the process after the first polling. Further, when a plurality of taxi companies allocate vehicles by one system, company restrictions can be selectively activated.
If the vehicle that can be dispatched is not found in the search for the vehicle that can be dispatched, the vehicle dispatch to the customer is canceled once,
Move to another customer's dispatch process. In this case, the canceled customer stores it again in the queue for the vehicle dispatch request, but the position to return to can be specified by setting.

For the vehicles to be dispatched, which are found by the search for the vehicles that can be dispatched as described above, scores are calculated under various conditions to rank the vehicles that can be dispatched. First of all, out of the vehicles that can be dispatched, block vehicles that are not subject to vehicle dispatch instruction and vehicles that do not meet the conditions when large, medium and small vehicles are specified are excluded, but such exclusion is not performed. You can also do so.

When there is no vehicle to be dispatched by the above exclusion process, the customer's dispatch is once returned to the dispatch queue. The dispatch order is determined for the remaining vehicles, but the factors that determine the dispatch order are vehicle dynamics (including destination code), distance from the customer, number of wireless instructions, vehicle direction, elapsed time of dynamics, etc. There is. Scores are calculated according to all or any of these factors and ranked in descending order of score. When the order of vehicles to be dispatched is determined, up to 10 vehicles are displayed in descending order of rank.

The distance from the customer is the customer position x
1, y1 and vehicle positions x2, y2, (x1-x
2) ² + (x1-x2) obtained by computing the square root of ^2, the distance the vehicle dynamics (empty car, to determine the first order by a combination of temporary unladen) preferred for efficiency dispatch.

When the vehicle allocation order is determined, vehicle allocation is performed. As described above, there are automatic vehicle allocation and manual vehicle allocation. In automatic vehicle dispatching, a customer is selected according to the vehicle dispatching queue, and a vehicle that can be dispatched is searched and displayed automatically.After the order of vehicles to be dispatched to the customer is displayed, the operator usually selects a vehicle from the vehicles. Select and dispatch. When there are no more vehicles to be dispatched to the same customer, it is possible to search for vehicles that can be dispatched again at that point and continue the vehicle allocation. It is also possible to perform so-called direct vehicle allocation, in which the vehicle number is specified and the vehicle is allocated to a specific vehicle while the vehicle to be allocated is displayed, regardless of the displayed vehicle.

The taxi vehicles that have already been dispatched are called on-vehicle vehicles, but they are displayed at the on-coming vehicle display area in descending order of the on-coming time. The pick-up state is released when the taxi vehicle is in the actual state with a customer onboard. When the actual vehicle state does not reach the control station 2 due to deterioration of the wireless environment, the actual vehicle key can be used to force the control station 2 to treat it as an actual vehicle. Further, it is possible to cancel the vehicle dispatching request of the customer or the vehicle being picked up during the vehicle dispatching process.

[Communication Function with Mobile Station] (Individual Call Function) The computer main body 21 has a communication function with the mobile station 1, one of which is an individual call function for individually calling a specific vehicle by designating a vehicle number. There is a calling function. This individual call is possible only on the dispatch screen and is performed by the following operation. First, on the control station 2 side, input is performed using the ten-key pad, and a maximum four-digit vehicle number is designated by numbers. After that, when the call key is pressed, the individual call signal is transmitted to the vehicle with the designated vehicle number. Also, the vehicle number of the called taxi vehicle is displayed on the individual display of the dispatch screen. When receiving the approval signal from the mobile station 1 of the taxi vehicle, "OK" is displayed beside the called vehicle number,
After that, the call with the vehicle becomes possible.

More specifically, at the time of individual call, the control station 2 starts when the call key is pressed, and the control station 2
When the car number is designated and the call key is pressed in, the individual call request is issued to the mobile station 1 of the designated taxi vehicle. At this time, the lamp 15m of the call key 15c (FIG. 4) of the mobile station 1 of the taxi vehicle for which the call is requested lights up and the buzzer 15k rings. Further, the mobile station 1 side returns an ACK signal indicating that the call request has been accepted to the control station 2. When the control station 2 receives the ACK signal for the call request, it waits for the acknowledgment code to be sent from the mobile station 1. After receiving the ACK, the control station 2 waits for a fixed time, for example, up to 5 seconds, to receive the acknowledgment code. However, this time is 1
It can be set in units of 00m.

The OK code is transmitted to the control station 2 by operating the call key on the mobile station 1 side. When the control station 2 receives the acknowledgment code, it sends an ACK signal to notify the mobile station 1 of the receipt. Further, on the screen of the control station 2, an "OK" character indicating completion of calling is displayed beside the vehicle number of the vehicle. When the mobile station 1 receives the ACK signal for the OK code, the lamp 15m of the calling key blinks and the buzzer 15k stops ringing. When the approval code is not sent from the mobile station 1 within a fixed time, "NG" is displayed next to the vehicle number.

(Emergency Vehicle Reception Function) When the control station 2 receives an emergency code from a taxi vehicle in an emergency, the control station 2 displays the information on the screen and automatically enters the tracking system. More specifically, when an emergency situation occurs in the taxi vehicle, when the crew member turns on the emergency switch 15, the emergency code is sent to the control station 2 together with the vehicle number. When the control station 2 receives the emergency code, it returns a reception signal indicating that it has been received to the mobile station 1. After the mobile station 1 sends the emergency code,
If the reception signal from the control station 2 cannot be received even after a certain period of time, the emergency code is repeatedly transmitted to the control station 2 until it is received. When the control station 2 receives the emergency code, it sends out the reception code and immediately enters the tracking system of the mobile station 1 through individual polling.

The emergency switch 1 ends after the emergency measures are completed.
When the signal 5 is turned off, the signal for canceling the emergency is transmitted from the mobile station 1 to the control station 2. The communication procedure in this case is also the same as that for the emergency code transmission. When the emergency is released, the control station 2 stops the tracking process.

(Voice Retransmission Function) The control station 2 requests the control station 2 to retransmit the voice when the "retransmission" key 15b is turned on in the mobile station 1 when arranging the voice for delivery. The code will be sent. When the control station 2 receives this voice retransmission request code, it returns a reception signal indicating that it has been received to the mobile station 1, and when the mobile station 1 receives this, it becomes possible to communicate with the control station 2 by voice. At this time, the control station 2
The vehicle number of the taxi vehicle that has issued the voice resend request is displayed on the vehicle allocation screen, and the information of the corresponding customer is displayed on the vehicle allocation screen. The vehicle number is also displayed in the vehicle communication information display column at the bottom of the screen. When the mobile station 1 does not receive the received signal from the control station 2 even after a lapse of a certain time after transmitting the voice retransmission request code, the "retransmission" key is operated again.

(Forced Position Correction Function) When the position of the taxi vehicle grasped by the control station 2 is significantly different from the actual position for some reason, the position of the taxi vehicle can be corrected by the control station 2. First, the mobile station 1 notifies the district name of the passing point. When the position of the vehicle as grasped by the control station 2 is significantly different from the actual position, the control station 2 specifies the vehicle number and the correction point corresponding to the area of the passing point which the mobile station 1 has contacted. Press the key and select the correction point. At this time, the control station 2 transmits the correct position of the point registered in the control station to the mobile station 1. When the mobile station 1 receives the position correction signal, the mobile station 1 returns to the control station 2 an ACK signal indicating that the reception has been accepted. When the control station 1 receives the ACK signal for the position correction, it redisplays the vehicle at the corrected position. When the control station 2 does not receive the ACK signal, the correction point key is operated again.

(Vehicle Information Receiving Function) Information transmitted from the mobile station 1 at any time is received, and the maximum number of five is displayed in the bottom line of the screen by color-coding the vehicle number and the type of transmission content. First, the vehicle number of the mobile station 1 for which the microphone press is turned on is displayed. Receives and displays signals when the taxi vehicle dynamics change. For example, when a taxi vehicle that has received a vehicle allocation request from the control station 2 becomes an actual vehicle, the actual vehicle signal is received and the vehicle number is displayed. Further, the number of the vehicle that transmitted the voice reproduction signal is displayed.

[Vehicle Management Function] The computer main body 21 has various functions for managing the state of a taxi vehicle, and is a standby vehicle, an unknown vehicle, an NG vehicle, a resting vehicle, a stopped (engine off) vehicle, an actual vehicle, an empty vehicle, It manages dynamic vehicles such as temporary empty vehicles and intercepting vehicles.

(Management of Standby Vehicles) Taxi vehicles that have entered the standby state are managed based on information such as when all vehicles are polled, and a list is displayed if necessary. When the crew operates the standby key 15d of the taxi vehicle, the vehicle enters the standby state and starts measuring the standby time from that point. When the operator of the control station 2 operates the standby key, a window is created at the lower right of the CRT to display seven vehicles in the order of long standby time by vehicle number, standby area, and standby elapsed time. When the standby key is operated again in the control station 2, the window for displaying the standby vehicle is deleted. Map CR
At T, the standby vehicle is displayed on the vehicle management screen when the enlarged map of the specific area is displayed.

(Management of unknown vehicle) Vehicles outside the area where the radio does not reach, vehicles within the area but not reachable due to obstacles (such as building shadows), vehicles in the garage and turned off. For example, a taxi vehicle that does not respond by polling for a set number of times is treated as an unknown vehicle, taxi vehicles that have entered an unknown state are managed based on the information when polling all vehicles, and a list is displayed as necessary. To do. When the control station 2 finds a taxi vehicle that has become an unknown vehicle by polling all vehicles, it starts measuring the unknown time from this point. When the operator of the control station 2 operates the unknown key, a window is created at the lower right of the CRT to display seven vehicles in the order of long unknown time by vehicle number and unknown time. When the unknown key is operated again, the standby window is deleted.

(Management of NG Vehicle) A vehicle which has passed a certain time in a rest state and a vehicle which has passed a certain time in the engine-off state are treated as an NG vehicle, and the vehicle which has entered the NG state is based on the information at the time of polling all vehicles. Manage and display a list as needed. In the mobile station 1 of the taxi vehicle, when the crew operates the break key 15e, the elapsed time of the break starts to be measured from that point. When the control station 2 finds a vehicle that has a break or engine off by polling all vehicles,
It is judged whether the elapsed time exceeds the time when it becomes NG, and if it exceeds, it is treated as an NG vehicle. When the operator of the control station 2 operates the NG key, a window is created at the lower right of the CRT, and seven vehicles are displayed in order from the longest NG time by vehicle number and NG time. When the NG key is operated again, the window is deleted.

(Management of Resting Vehicles) Vehicles that have entered a resting state are managed based on information such as when all vehicles are polled, and a list is displayed if necessary. Break key 1 for taxi vehicles
When the crew operates 5e, the vehicle becomes a resting vehicle, and the resting time starts to be measured from that point. When the operator of the control station 2 operates the break key, a window is created at the lower right of the CRT, and seven vehicles are displayed here in the order of the longest break time by vehicle number, break area, and break elapsed time. When the break key is operated again, the window for displaying the break vehicle is deleted. The resting vehicle is displayed on the vehicle management screen when the enlarged map of the specific area is displayed on the map CRT.

(Management of stopped vehicle) Stop (engine off)
The entering vehicles are managed based on information such as when all vehicles are polled, and a list is displayed if necessary. When the engine of a vehicle stops, the vehicle becomes a stopped vehicle and starts measuring time from that point. When the operator of the control station 2 operates the stop key, a window is created in the lower right of the CRT, and seven vehicles are displayed here in the order of long stop time by vehicle number, stop area and stop elapsed time. When the stop key is operated again, the window for displaying the stopped vehicle is deleted. On the map CRT, the stopped vehicle is displayed on the vehicle management screen when the enlarged map of the specific area is displayed.

(Management of Actual Vehicles) Vehicles that have entered the actual vehicle state are managed based on information such as when all vehicles are polled, and a list is displayed if necessary. When a taxi vehicle loads passengers, the vehicle becomes an actual vehicle, and the actual vehicle time starts to be measured at that time. When the operator of the control station 2 operates the actual vehicle key, a window is created at the lower right of the CRT, where seven vehicles are displayed in order of increasing actual vehicle time by vehicle number, actual vehicle area, and actual vehicle elapsed time. When the actual vehicle key is operated again, the window is deleted. The actual vehicle is displayed on the vehicle management screen when the enlarged map of the specific area is displayed.

(Management of Empty Vehicles) Vehicles that have entered an empty state are managed based on information such as when all vehicles are polled, and a list is displayed if necessary. When the taxi vehicle becomes empty, it starts measuring the empty time. When the operator of the control station 2 operates the vacant key, a window is created at the lower right of the CRT, where seven vehicles are displayed in the order of the vacant time according to the vehicle number, vacant area and vacant elapsed time. When the empty key is operated again, the window disappears. The empty vehicle is displayed on the vehicle management screen when the enlarged map of the specific area is displayed. Since the empty state usually overlaps with the waiting, resting, and stopping dynamics, which dynamic is prioritized is preset and specified.

(Management of Temporary Empty Vehicles) Vehicles that have entered the temporary empty vehicle state are managed based on information such as when all vehicles are polled,
Display a list if necessary. Start measuring the time when the taxi vehicle is temporarily empty. When the operator of the control station 2 operates the temporary vacant car key, a window is created in the lower right of the CRT, where seven vehicles are displayed in order of increasing temporary vacant car time by vehicle number, temporary vacant car area, and temporary vacant car elapsed time. .. When the temporary empty car key is operated again, the window is deleted. The temporary empty vehicle is displayed on the vehicle management screen when the enlarged map of the specific area is displayed. Since the temporary empty vehicle state overlaps with the dynamic state of a normal actual vehicle, which dynamic state is prioritized is preset and designated.

(Management of Intercepting Vehicle) The vehicles that have entered the intercepting state are managed on the basis of information such as when all vehicles are polled, and a list is displayed if necessary. Start measuring the time when the taxi vehicle picks up. When the operator of the control station 2 operates the interceptor key, a window is created at the lower right of the CRT, and seven vehicles are displayed here in descending order of interceptor time by vehicle number, interceptor area, and interceptor elapsed time. When you operate the intercept key again, the window disappears. The temporary empty vehicle is displayed on the vehicle management screen when the enlarged map of the specific area is displayed.

[Tracking Function] (Emergency Vehicle Tracking) When the control station 2 finds a vehicle that has transmitted an emergency code, it automatically starts tracking the vehicle and polls the vehicle at predetermined intervals. Then, information indicating the vehicle position and the heading is collected. The information collected will be displayed in the emergency car window for a small CRT and a large CR
In the case of T, it is displayed on the vehicle management screen. It also displays the information collected and the time elapsed since the emergency code was received. The emergency car tracking is stopped when the emergency switch of the taxi vehicle is turned off or when the tracking cancel key is operated in the control station 2.

(Tracking of Specific Vehicle) When the control station 2 wants to track a specific taxi vehicle, if the tracking key is operated after inputting the vehicle number with the ten-key pad, the vehicle is polled at predetermined intervals, Vehicle position,
Collect information that indicates direction and dynamics. For small CRTs, the collected information is displayed in the tracking vehicle window, and large C
In case of RT, it is displayed on the vehicle management screen. It also displays the information collected and the time elapsed since the tracking started. The maximum number of units that can be tracked at the same time can be set within the range of 10. To stop the tracking of a specific vehicle, first enter the vehicle number with the numeric keypad and then operate the tracking cancel key. To stop the tracking of all the vehicles currently being tracked, it suffices to operate the tracking cancel key, and the tracking of the emergency vehicle is not stopped at this time.

[Explanation of Flowchart] The flowcharts of FIGS. 26 to 30 showing the work performed by the CPU constituting the control device main body 11 of the mobile station 1 according to a predetermined control program to perform the detailed operation of the system outlined above. And the flowcharts of FIGS. 31 to 41 showing the work performed by the computer main body 21 of the control station 2 in accordance with a predetermined program.

(Flowchart of Mobile Station) The CPU 11a of the control device main body 11 of the mobile station 1 starts its operation when the power is turned on, and initializes in the first step S1. In this initialization, RAM
In addition to clearing each area in 11a ₂ , data such as the current position and azimuth center is read from the non-volatile memory 11b and stored in a predetermined area of the RAM 11a ₂ .

Thereafter, the process proceeds to step S2, where it is determined whether or not the exit key 15n has been operated. When this key 15n is operated for shipping, the process proceeds to step S3, and the current position is corrected based on the known shipping position data. 3m after running without operating the exit key 15n
When the vehicle travels as described above, the determination in step S4 is YES, and in step S5, the buzzer 15k is turned on and a warning sound is generated for 5 seconds to notify the crew member that the exit key 15n is not operated.

After that, the routine proceeds to step S6, where it is determined whether or not the ACC of the ignition switch is on. When ACC is on, the process proceeds to step S7,
Here, the position coordinate of the taxi vehicle is calculated by calculation based on the direction signal from the direction sensor 12b and the distance pulse signal from the traveling sensor 12c which are input via the sensor controller 12a, and the data of the calculated position coordinate is RA.
The current position data in M11a ₂ is replaced and the position is updated.

Next, in step S8, the operation panel 15
After performing the input process of inputting the input signal by the key operation of, the process proceeds to step S9, where the wind sign 13b
Performs input processing for inputting the wind sign signal from.

Thereafter, the process proceeds to step S10, where it is determined whether or not the correction flag is on. This correction flag is turned on when the customer dispatches a vehicle according to the dispatch command from the control station 2, and the customer is put on the vehicle to become an actual vehicle. When the determination in step S11 is YES, the process proceeds to step S12, where the dispatch command is issued. The current position is corrected by the customer position data received at that time.

When the correction flag is not turned on or after the execution of step S12, the process proceeds to step S13, where it is determined whether or not there is a dynamic change. If the determination is YES, the process proceeds to step S14 and the time of the dynamic change. Is measured, and the time measurement of the dynamics up to the previous time is ended in the next step S15. When the dynamic state has not changed or after execution of step S15, the process proceeds to the mode branch of step S16.

In the mode branch of step S16, the branch is performed based on the flag set by the interrupt operation described later. If there is no flag that is turned on, the process proceeds to step S17 to perform the buzzer process, and then in step S18. Wait 100 ms and return to step S2.

In the mode branch of step S16, depending on the flag that is turned on, step S16a
Vehicle dispatch processing, individual call processing in step S16b, emergency setting / cancellation processing in step S16c, step S16d
Voice retransmission processing, dynamic call processing in step S16e, one rotation adjustment processing in step S16f, setting processing in step S16g, and sign post correction processing in step S16h.

When the determination in step S6 is NO, that is, when the ACC is off, the process proceeds to step S19 to determine whether the exit key has been operated. If the determination in step S19 is NO, step S20 At, the current position is backed up and the operation of the CPU is completed. When the determination in step S19 is YES, that is, when the exit key is operated, the process proceeds to step S21, the time until the engine is turned on is measured, and then the process proceeds to step S7.

(Modem Interrupt) In the process of executing the flowcharts shown in FIGS. 26 and 27, the modem 17b
When the transmission / reception operation is performed, the flowchart of the modem interrupt shown in FIGS. 28 and 29 starts, and in the first step S31, it is determined whether or not it is a transmission interrupt. If the determination is YES, the process proceeds to step S32 to determine whether or not the transmission is completed, and if the determination is NO, the data is transmitted in step S33 and then the process returns to the original flowchart.

If the determination in step S31 is NO, that is, if it is a reception interrupt, the process proceeds to step S34.
After performing a parity check here, the process proceeds to step S35. In step S35, the received data is EOT.
If the determination is NO, the process proceeds to step S36 to determine whether it is the information section, and the determination is Y.
If ES, the received data is stored in a predetermined area of the RAM in step S37, and if NO, that is, if it is a control code, the process immediately proceeds to step S50 in the flowchart of FIG.

When the determination in step S35 is YES, that is, when the communication sequence is completed, the process proceeds to step S38, where the ID code is area polling, group polling, individual polling, vehicle allocation request,
Check whether it is an individual call, emergency setting / cancellation response, voice resend response, forced position correction, or acknowledge response.

When the ID code is district polling and the determination in step S39 is YES, the process proceeds to step S40, in which it is determined whether the taxi vehicle dynamics are designated dynamics. When the dynamic state is the designated dynamic state, the process proceeds to step S41 and it is determined whether or not the current position is within the designated region. When the current position is within the designated area, the process proceeds to step S42 to set the transmission format such as slot No., position, azimuth, and movement. Then step S
In step S43, ENQ for requesting a response from the control station 2 is set as transmission data, and then the process proceeds to step S50 in the flowchart of FIG. Incidentally, the above steps S40 and S43
When the determination is NO, steps S42 and S43 are skipped and the process proceeds to step S50 in the flowchart of FIG.

The ID code is group polling,
When the determination in step S44 is YES, step S4
Proceeding to step 5, it is determined whether the taxi vehicle belongs to the designated group. The judgment is Y in the designated group
If ES, the process proceeds to step S42, and if NO, the process proceeds to step S50 in the flowchart of FIG. Further, the ID code is individual polling, and step S4
When the determination in 6 is YES, the process proceeds to step S42.

If the ID code is a vehicle allocation request, step S
If the determination at 47 is YES, the process proceeds to step S48, at which it is determined whether or not the train is in front of the station. Step S48
If the determination is YES, the process proceeds to step S49 to determine whether or not it is in the standby state, and if the determination is NO, the process proceeds to step S50. In step S50, it is determined whether or not there is transmission data, and if the determination is YES, the data is transmitted in step S51 and the process returns to the original flowchart. When the determination in step S50 is NO, that is, when there is no transmission data, step S51 is skipped and the process returns to the original flowchart.

When the determination in step S48 is NO and the vehicle is not in front of the station, and when the determination in step S49 is YES and the vehicle is in the standby state, the process proceeds to step S52, the lamp 15m of the vehicle allocation key is turned on, and the next step S53 is performed.
Then, the buzzer 15k is turned on to inform the crew member that there is a vehicle allocation request, and the vehicle allocation request flag is turned on in step S53a, and then the process proceeds to step S50.

If the ID code is an individual call and the determination in step S54 is YES, the flow advances to step S55 to light the call key lamp 15m, and in the following step S56, the buzzer 15k is turned on to confirm that there is an individual call. Notify the crew and step S56a
After turning on the individual call flag in step S5
Go to 0.

The ID code is an emergency setting / cancellation response,
When the determination in step S57 is YES, step S5
Step S50 after stopping the transmission retry in
Proceed to. If the ID code is a voice resend response, step S
When the determination in 59 is YES, the process proceeds to step S60, the transmission retry is stopped, and then the process proceeds to step S50. I
When the D code is the forced position correction and the determination in step S61 is YES, the process proceeds to step S62 to perform the position correction, the transmission format is set in subsequent step S63, and then the process proceeds to step S64. In step S64, the control station 2 is requested to respond as the transmission data EN
After setting Q, the process proceeds to step S50.

The ID code is the acknowledge response, and step S
When the determination result in 65 is YES, the process proceeds to step S66,
Here, it is determined whether or not the vehicle allocation is OK. When the vehicle allocation is OK, the process proceeds to step S67, and the position correction flag for correcting the position at the customer position is turned on. Step S65
If the determination is NO, the process proceeds to step S50.

(Optical Communication Interruption) When the optical receiver 16 receives the optical signal from the sign post, the optical communication interruption of FIG. 30 is started, and it is judged in the first step S71 whether the optical signal is normally received. Then, if the determination is YES, the process proceeds to step S72 to set the data, and in the following step S73, the sign post correction flag is turned on and the process returns to the original flowchart.

(Flowchart of control station) The main routine of the program of the computer main body 21 of the control station 2 shown in FIG. 31 is started by activating MS-DOS, for example, and in the first step S100, the dedicated keyboard 22
Key input processing is performed, and mode branching determination is performed in subsequent step S101, and the process proceeds to the subroutine of steps S102 to S111 depending on the determination result.

When the process proceeds to the all-vehicle polling (group polling) in step 102, the flowchart shown in FIG. 32 is executed, and the transmission format (FIG. 15) is set in the first step S102a. This format setting also sets the group. After that, the process proceeds to step S102b to transmit the data, and then proceeds to step S102c to determine whether or not the data is received from the mobile station 1. If this determination is NO, whether a certain time has elapsed in step S102d. It is decided whether or not to wait for a certain time.

If data is received before the elapse of a certain period of time, the process proceeds to step S102e, the received data is stored and stored in a predetermined area of the memory, and then step S102.
The process proceeds to step f, and it is determined whether or not data of the number of designated vehicles has been received. If this determination is NO, the process returns to step S102c to determine whether or not the next data has been received, and the above operation is repeated. When the data of all the designated vehicles are received and the determination in step S102f is YES, step S1
In step 02g, it is determined whether or not the processing has been completed for all groups. If not all have been completed, the process returns to step S102a and the above-described operation is repeated. In addition, the data cannot be received within the fixed time, and the step S102d
When the determination is NO, steps S102e and S1
Skip 02f and proceed to step S102g.

When the processing of all the groups is completed and the determination in step S102g is YES, step S102h
Proceed to and calculate the applicable area from the coordinate position of each vehicle. In order to perform this calculation process, the memory of the computer main body 21 has data designating the range of the district. After that, the process proceeds to step S102i to update the position data of each vehicle, and then proceeds to step S102j,
At this time, the operation of measuring the time of the vehicle that cannot communicate is started, and the information about the unknown vehicle is stored in the memory. Then, the process proceeds to step S102k, where the time measurement of the vehicle that has responded this time among the previously unknown vehicles is terminated, the information of the vehicle is erased, and the process returns to the main routine.

When the process proceeds to the area polling in step 103, the flowchart shown in FIG. 33 is executed, and in the first step S103a, the designated coordinates relating to the designated area are read, and the read designated coordinates are used in the next step S103b. Transmission format (Fig. 1
3) is set and data is transmitted. After that, the process proceeds to step S103c, and it is determined whether or not data is received from the mobile station 1. When the determination is YES, the process proceeds to step S103e, the received data is stored and stored in a predetermined area of the memory, and then step S103c. Then, it returns to and determines whether the next data is received. When there is no data to be received and the determination in step S103c is NO, it is determined in step S103d whether or not a fixed time has elapsed, and the process waits for a fixed time.

If data is received before the elapse of a certain period of time, the flow advances to step S103e to repeat the above operation. There is no received data continuously for a certain period of time, step S10.
If the determination of d is YES, it is determined that there is no transmission from the polling target vehicle, the process proceeds to step S103f, the area where the vehicle exists is calculated from the position coordinates of each vehicle, and the data of each vehicle is updated in subsequent step S103g. Then, the process returns to the main routine of FIG. If data cannot be received within the fixed time, step S103e.
Is skipped and the process proceeds to step S103f.

When the process proceeds to the individual polling in step 104, the flowchart shown in FIG. 34 is executed, the number of the vehicle to be polled is read in the first step S104a, and the read vehicle number is used in the next step S104b. Transmission format (Fig. 14)
Is set and data is transmitted. After that, the process proceeds to step S104c, it is determined whether or not data is received from the mobile station 1, and if this determination is NO, step S104 is performed.
In 104d, it is determined whether a certain time has passed,
If this determination is NO, it is determined in step S103d whether or not a fixed time has elapsed, and the process waits for a fixed time.

If data is received before the elapse of a certain period of time, the process proceeds to step S104e, the received data is stored and stored in a predetermined area of the memory, and then step S104.
The process proceeds to step f, where the area where the vehicle exists is calculated from the position coordinates of each vehicle, the data of each vehicle is updated in the subsequent step S104g, and the process returns to the main routine of FIG. When data cannot be received within the fixed time, step S104e is skipped and the process proceeds to step S104f.

In the case of proceeding to the vehicle allocation in step 105, FIG.
The flowchart shown in FIG. 5 is executed, and in the first step S105a, the vehicle allocation screen is displayed and then the process proceeds to step S105b, where it is determined whether the vehicle allocation is automatic or manual. When the determination is manual, step S10
In step 5c, it is determined whether or not information about the customer, such as the customer number, is input. If the determination is NO, the process returns to the main routine. If the determination in step S105b is automatic, the process proceeds to step S105d to determine whether or not there is a target customer that needs to be dispatched. If the determination is NO, the process returns to the main routine.

Step S105c or Step S105
When the determination of d is YES, the process proceeds to step S105e, where the customer position information (name, address, etc.) is displayed in the dispatch column of the dispatch screen. After that, the process proceeds to step S105f, where the customer position information (district number or coordinates) and designated movement are read. This read information is used for calculation and determination of designated coordinates in the next step S105g. In step S105g, calculation of designated coordinates,
When the determination is made, the process proceeds to the area polling subroutine of step S103.

When the area polling in step S103 is completed, the process proceeds to step S105h, where it is determined whether there is a vehicle that can be dispatched. If there is no vehicle that can be dispatched, the process proceeds to step S105i, and whether or not the set number of polling has been executed. If the determination is NO, step S1
After changing the polling condition in 05j, the process returns to step S105f and the above-described operation is repeated.

Further, the determination in step S105h is YES.
If, that is, if there is a vehicle that can be dispatched, the process proceeds to step S105k, where the vehicle dispatching order is determined and the determined order is displayed. After that, the process proceeds to step S105m, where a vehicle allocation request process is performed. Subsequent to this vehicle allocation request processing, the flow proceeds to step S105n, where it is determined whether or not there is a vehicle allocation response. If this determination is YES, step S1
After proceeding to 05p to permit the call with the mobile station 1 that responded to the vehicle dispatch, the procedure proceeds to step S105q, where the vehicle that has already been dispatched is registered as an oncoming vehicle, is displayed in the oncoming vehicle list field, and then returns to the main routine.

When the determination in step S105p is NO and there is no vehicle dispatching response, the process proceeds to step S105r, where it is determined whether or not there is a next-priority vehicle. If there is a next-priority vehicle, the process returns to step S105m and the above-described operation is performed. repeat. Further, when the determination in step S105i is NO and the vehicle that can be dispatched is not found even after the set number of polling is executed, or when the determination in step S105r is NO and there is no next priority vehicle, step S105s is performed.
Then, the customer information is registered in the dispatch queue, and the process returns to the main routine.

The vehicle allocation request process in step S105m is executed by executing the flowchart shown in FIG.
That is, in step S105m _1, determines whether there is an operation of the vehicle allocation request key, returns to the main routine in the absence of determination. When the vehicle allocation request key is operated, the process proceeds to step S105m ₂ to set the transmission format, and in the subsequent step S105m ₃ , data is transmitted in this set format. Then the process proceeds to step S105m _4, wherein determining whether data has been received from the mobile station 1, when the determination is YES the process proceeds after performing OK or NG display proceeds to step S105m ₅ to step S105n. Step S105m ₄
Determination, it is determined whether or not a predetermined time has elapsed proceeds to step S105m ₆ when NO, the repeated steps S105m ₄ until a predetermined time has elapsed, the incommunicable display proceeds to step S105m ₇ after a certain period of time After that, the process proceeds to step S105n.

If the process proceeds to the tracking in step 106, the process shown in FIG.
The flowchart shown in FIG. 7 is executed, and in the first step S106a, it is determined whether or not the tracking start flag which is turned on by the operation of the tracking key is on. When the determination is NO, the process returns to the main routine. On the other hand, when the tracking start flag is on, the process proceeds to step S106b, where it is determined whether or not a fixed time has elapsed, and the determination is N
When it is O, the process returns to the main routine. Then, when the determination in step S106b is YES, the above-described individual polling subroutine in step S104 is executed and the process returns to the main routine.

When the process proceeds to the forced position correction in step S107, the flowchart shown in FIG. 38 is executed, and it is determined whether or not there is an input by the operation of the forced correction key in the first extending S107a. If the determination is NO, the main routine When the determination is YES, the process returns to step S107.
Proceed to b, the vehicle number is read, and in the next step S107c, the coordinates of the legal point are read. Then, in the subsequent step S107d, the transmission format (FIG. 16) is set based on the vehicle number and the coordinates read, and the data is transmitted in the next step S107e according to the set format. After that, in step S107f, it is determined whether or not a response signal is received. When the determination is YES, the position data of the vehicle is corrected and stored in step S107g, and then the process returns to the main routine. If the determination in step S107f is NO, step S10
At 7h, the process waits for a fixed time, and if no response signal is received after waiting for a fixed time, the process returns to the main routine.

When the vehicle management in step S108 is proceeded to, the flow chart of FIG. 39 is executed, and in the first step S108a, it is determined whether or not there is a standby key input. If the determination is YES, the process proceeds to step S108b. To retrieve the current vehicle data, and continue with step S10.
In 8b, the vehicle numbers, districts, and waiting times of several vehicles having a long waiting time are displayed and the process returns to the main routine. Step S1
If the determination in 08a is NO, the process proceeds to step S108d, where it is determined whether or not there is an unknown key input. If the determination is YES, the process proceeds to step S108e to search for an unknown vehicle, and in the subsequent step S108f, the unknown time After displaying several long car numbers and unknown time, return to the main routine.

If the determination in step S108d is NO, the process proceeds to step S108g, in which it is determined whether or not there is an NG key input, and if the determination is YES, step S108g.
Proceed to 108h to search for an NG vehicle, and continue with step S1.
In 08i, several vehicle numbers with long NG times and NG times are displayed. When the determination in step S108g is NO, the process proceeds to step S108j and subsequent steps, the break key, the stop key,
Whether there is an input for the actual vehicle key, the empty vehicle key, the temporary empty vehicle key, or the intercept key, and if there is an input, the same processing as when there is a standby key input is performed and the process returns to the main routine. Omitted.

When the process proceeds to the communication with the customer search system in step S110, that is, the communication with the computer 25 for exclusive use of customer management, the flowchart of FIG. 40 is executed,
In the first step S110a, it is determined whether or not there is a customer waiting to be dispatched. When the determination is NO, the process returns to the main routine, and when the determination is YES, the process proceeds to step S110b. In step S110b, it is determined whether or not there is a customer for the reserved vehicle allocation. If the determination is YES, the process proceeds to step S110c to register and display the customer at the head of the vehicle allocation queue and then return to the main routine.

When the determination in step S110b is NO, it is determined whether or not the customer is a priority dispatch customer, and the determination is YES.
In the case of, the process proceeds to step S110e to register and display according to the priority order of the customers in the dispatch queue, and then return to the main routine. Moreover, the determination in step S11d is NO.
In case of, the process proceeds to step S110f to register and display at the tail end of the dispatch queue, and then return to the main routine.

When the process proceeds to the communication with the vehicle in step S111, the process proceeds to the flowchart of FIG. 41, and in the first step S111a, it is determined whether or not there is a reception from the mobile station 1, and the determination is NO. Sometimes it returns to the main routine. If there is a reception from the mobile station 1 and the determination in step S111a is YES, step S111
The process proceeds to step b, and it is determined whether the request is an emergency setting request. If the determination is YES, a response signal is transmitted in step S11c, the tracking start flag is turned on in step S111d, and then the process returns to the main routine.

If the determination in step S111b is NO, the process proceeds to step S111e to determine whether or not it is an emergency release request, and if the determination is YES, step S111.
Proceed to f to transmit the response signal, and then execute the next step S111g.
After turning off the tracking start flag, the process returns to the main routine.

If the determination in step S111e is NO, the process proceeds to step S111h, and it is determined whether the request is a voice retransmission request. If the determination is YES, the process proceeds to step S111i to transmit a response signal, and the subsequent step. S
The information (including the route) of the customer who has dispatched the vehicle is displayed in 111j, the call is permitted in the next step S111k, and then the process returns to the main routine.

If the determination in step S111h is NO, the process proceeds to step S111m, in which it is determined whether or not a dynamic call request is made. If the determination is YES, step S111m is performed.
The process proceeds to step 111n to store the data, update the vehicle data, and then return to the main routine. If the determination in step S111m is NO, step S111p
Then, it is determined whether the response data is polling response data. If the determination is YES, the data is stored in step S111q and then the process returns to the main routine. When the determination in step S111p is also NO, the process immediately returns to the main routine.

Although not referred to in the above description, the customer search screen shown in FIG. 42 is displayed on the CRT of the customer management dedicated computer 25. In addition, the CRT 23 for dispatch
43, the vehicle allocation screen shown in FIG. 43, the all-vehicle polling dynamic display screen shown in FIG. 44, and the all-region dynamic vehicle display screen shown in FIG. 45 are switched and displayed. Furthermore, CRT24 for maps
Displays a map screen in which the vehicle number is superimposed on the map as shown in FIG. 46.

Further, when the taxi vehicle to which the vehicle is allocated becomes a real vehicle with a customer on it, the vehicle position shown by the dotted line in FIG. 47 is corrected to the customer's position as shown by the solid line.

In the above-mentioned embodiment, the customer position data for position correction at the time of the actual vehicle is transmitted at the same time when the data to that effect is transmitted to the taxi vehicle for which the vehicle allocation has been decided. The position data may be transmitted in advance at the time of polling, or the customer position data input by the ten-key may be used.

[0187]

As described above, according to the present invention, the mobile station detects the position of the vehicle, which changes from moment to moment, and generates position data indicating the current position of the vehicle by a point. It transmits to the control station together with the vehicle identification data for identifying the vehicle, the control station receives the data from the mobile station, and based on the received position data and vehicle identification data and map data, the position of each vehicle Since the vehicle position is managed by displaying it on the map around, it is superposed on the map of a certain area even if many vehicles are scattered in a certain area and change positions at all. Depending on the position of the vehicle, the current position of the vehicle can be accurately grasped at a point within a certain area.

Further, since the control station manages the vehicle position by displaying in which district where the certain area is divided into a plurality of areas in advance based on the received position data, the vehicle position can be identified. You can know exactly if it exists in the district.

Further, since the control station receives the direction data generated by the mobile station detecting the geomagnetism to detect the traveling direction of the vehicle and displaying the traveling direction of each vehicle, the control station displays the current vehicle. You can know the direction of travel in the absolute direction.

Further, since the position data is generated based on the azimuth data and the traveling distance calculated by the distance pulse signal generated according to the traveling of the vehicle,
Direction data can be easily obtained.

Furthermore, since the control station receives the vehicle dynamics information transmitted from the mobile station and displays the dynamics of the vehicle, not only the position of each vehicle but also the dynamics can be accurately grasped.

Further, since the mobile station transmits data in response to polling data instructing the mobile station to transmit data, the control station sends position data, etc. from the vehicle when necessary. Can be collected.

Moreover, since the polling data is transmitted by designating the range of the area and the mobile stations existing in the area of the designated range transmit the data,
The control station can collect necessary location data of vehicles in the area.

Furthermore, since the mobile station receives the correction point information transmitted by the radio signal of the short range from a predetermined position within a certain area and corrects the position data, the error occurring in the position data is specified. It can be corrected to an accurate one each time you pass the point.

Especially, since the position of the taxi vehicle is displayed and used to determine the taxi vehicle to be allocated to the customer who requests the vehicle allocation, the taxi vehicle position can be accurately grasped to enable efficient vehicle allocation. become.

Moreover, the control station is provided with customer data including customer location data indicating the location of the customer within a certain area, and the location data of this customer data is used to center the location of the customer who requests the vehicle dispatch. Since the polling is performed by designating the fixed range and the movement of the taxi vehicle, the taxi vehicle suitable for dispatching can be accurately and efficiently found.

Further, since the position data is corrected when the vehicle becomes an actual vehicle based on the customer position data transmitted to the taxi vehicle for which the vehicle allocation has been decided, together with the data to that effect, it is possible to ensure that the customer is mounted every time the vehicle is allocated. Since the position can be corrected, more accurate vehicle position management can be performed.

Further, since the taxi vehicle to be dispatched is automatically determined based on the position data and the movement information received by the control station and the customer position data, labor saving of the dispatch work is possible.

[Brief description of drawings]

FIG. 1 is a block diagram showing a basic configuration of a vehicle position management device according to the present invention.

FIG. 2 is a diagram showing a schematic configuration of a taxi dispatch management system to which a vehicle position management device according to the present invention is applied.

FIG. 3 is a diagram showing a specific configuration of a mobile station in FIG.

FIG. 4 is a diagram showing a key arrangement of an operation panel in FIG.

5 is a diagram showing a configuration of a control device body in FIG.

FIG. 6 is a diagram showing a part of an area in RAM in FIG.

FIG. 7 is a diagram showing a part of an area in the nonvolatile memory in FIG.

FIG. 8 is a diagram showing a specific configuration of a control station in FIG.

FIG. 9 is a diagram showing a format of transmission data from a control station to a mobile station.

FIG. 10 is a diagram showing a format of transmission data from a mobile station to a control station.

FIG. 11 is a diagram showing a format of vehicle allocation request data.

FIG. 12 is a diagram showing a format of individual call request data.

FIG. 13 is a diagram showing a format of district polling request data.

FIG. 14 is a diagram showing a format of individual polling request data.

FIG. 15 is a diagram showing a format of group polling request data.

FIG. 16 is a diagram showing a format of forced position correction data.

FIG. 17 is a diagram showing a format of elapsed time request data.

FIG. 18 is a diagram showing a format of index data request data.

FIG. 19 is a diagram showing a format of special vehicle allocation request data.

FIG. 20 is a diagram showing a format of emergency setting request data.

FIG. 21 is a diagram showing a format of data such as an emergency cancellation request and a voice retransmission request.

FIG. 22 is a diagram showing a format of consent response request data.

FIG. 23 is a diagram showing a format of elapsed time response data.

FIG. 24 is a diagram showing a format of exponential data response data.

FIG. 25 is a diagram showing a format of microphone press data.

FIG. 26 is a flowchart showing a part of the work performed by the CPU of the control device body of the control station.

FIG. 27 is a flowchart showing another part of the work performed by the CPU of the control device body of the control station.

FIG. 28 is a flow chart showing a part of the work interrupted by the CPU of the control device body of the control station.

FIG. 29 is a flowchart showing another portion of the work interrupted by the CPU of the control device body of the control station.

FIG. 30 is a flowchart showing another work interrupted by the CPU of the control device body of the control station.

FIG. 31 is a diagram showing a main routine executed by a computer body of a control station according to a program.

FIG. 32 is a diagram showing an all-car polling subroutine in FIG. 31.

FIG. 33 is a diagram showing a district polling subroutine in FIG. 31.

FIG. 34 is a diagram showing an individual polling subroutine in FIG. 31.

FIG. 35 is a diagram showing a vehicle allocation subroutine in FIG. 31.

FIG. 36 is a diagram showing details of part of the vehicle allocation subroutine in FIG. 31;

37 is a diagram showing a tracking subroutine in FIG. 31. FIG.

38 is a diagram showing a forced position correction subroutine in FIG. 31. FIG.

FIG. 39 is a diagram showing a vehicle management subroutine in FIG. 31.

FIG. 40 is a diagram showing a communication subroutine with the customer search system in FIG. 31.

41 is a diagram showing a communication subroutine with the vehicle in FIG. 31. FIG.

FIG. 42 is a diagram showing a customer search screen displayed on the CRT.

FIG. 43 is a diagram showing a vehicle allocation screen displayed on the CRT.

FIG. 44 is a diagram showing an all-vehicle dynamics display screen displayed on the CRT.

FIG. 45 is a diagram showing an all-vehicle dynamics display screen by district displayed on the CRT.

FIG. 46 is a diagram showing a map screen displayed on a CRT.

FIG. 47 is a diagram showing how the actual vehicle position is corrected.

[Explanation of symbols]

1 Mobile Station 1a Position Data Generation Means 1a ₁ Heading Data Generation Means 1a ₂ Travel Detection Means 1b Data Transmission Means 1c Dynamic Information Generation Means 1d Data Reception Means 1e Correction Point Information Reception Means 1f First Position Correction Means 1g Second Positions Correction means 2 Control station 2a Data reception means 2b Display means 2c Map data storage means 2d Display control means 2e Data transmission means 2f Customer data storage means 2g Vehicle dispatch automatic determination means 3 Correction point information transmission means

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[Procedure amendment]

[Submission date] November 27, 1991

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 10

[Correction method] Change

[Correction content]

[Figure 10]

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 14

[Correction method] Change

[Correction content]

FIG. 14

Claims (13)

[Claims] 1. A mobile station is provided for each of a large number of vehicles scattered in a certain area and whose positions change at random, and a control station is provided at a center for managing the large number of vehicles.
In the vehicle position management device that manages the position of the vehicle by collecting the information of the mobile station in the control station, the mobile station detects the position of the vehicle that changes from moment to moment, and displays the current position of the vehicle as a point. Position data generating means for generating the position data shown, and data transmitting means for transmitting the position data generated by the position data generating means to a control station together with vehicle identification data for identifying the vehicle, wherein the control station is Data receiving means for receiving data transmitted by the data transmitting means of the mobile station, display means, map data storing means for storing map data of the certain area, position data and vehicle identification received by the data receiving means Based on the data and the map data stored in the map data storage means, the position of each vehicle is superimposed on the map around the position and the display hand is displayed. And a display control means for displaying on the vehicle location management apparatus characterized by managing the vehicle position by a display of the display unit. 2. A mobile station is provided for each of a large number of vehicles scattered in a certain area and changing positions at all, and a control station is provided at a center for managing the large number of vehicles.
In the vehicle position management device that manages the position of the vehicle by collecting the information of the mobile station in the control station, the mobile station detects the position of the vehicle that changes from moment to moment, and displays the current position of the vehicle as a point. Position data generating means for generating the position data shown, and data transmitting means for transmitting the position data generated by the position data generating means to the control station together with vehicle identification data for identifying the vehicle, wherein the control station is The data receiving means for receiving the data transmitted by the data transmitting means of the mobile station, the display means, and in which district the vehicle is divided into a plurality of predetermined areas based on the position data received by the data receiving means. A vehicle position management system that has display control means for displaying on the display means whether the vehicle is present, and manages the vehicle position by the display of the display means. apparatus. 3. The mobile station has azimuth data generating means for detecting geomagnetic field to detect a traveling direction of a vehicle to generate azimuth data, and the data transmitting means transmits the azimuth data together with the position data. The data receiving means receives the azimuth data together with the position data, and the display control means displays the traveling direction of each vehicle on the display means based on the azimuth data received by the data receiving means. The vehicle position management device according to claim 1 or 2, characterized in that: 4. The azimuth data generating means includes the azimuth data generating means and travel detecting means for generating a distance pulse signal according to the traveling of the vehicle, and the azimuth data generated by the azimuth data generating means. 4. The vehicle position management device according to claim 3, wherein the position data is generated based on a traveling distance calculated by a distance pulse signal generated by the traveling detection means. 5. The mobile station further comprises dynamic information generating means for generating dynamic information indicating the state of the vehicle, and the data transmitting means includes dynamic information generated by the dynamic information generating means together with the vehicle identification information. The transmission, and the display control means of the control station displays the movement of the vehicle on the display means based on the movement information received by the data receiving means. Vehicle position management device. 6. The control station includes data transmission means for transmitting polling data for instructing the mobile station to transmit data, and the mobile station performs polling for transmission by the data transmission means of the control station. 6. The vehicle position management device according to claim 1, further comprising data receiving means for receiving data, wherein said data transmitting means transmits data in response to reception of polling data by said data receiving means. 7. The data transmitting means of the control station designates a range of an area to transmit polling data, and the data transmitting means of a mobile station existing in the area of the designated range transmits data. Claim 1 characterized by the above-mentioned.
7. The vehicle management device according to claim 6. 8. Correction point information receiving means for receiving correction point information transmitted by the mobile station by means of a radio signal that the correction point information transmitting means installed at a predetermined position within the certain area reaches only a narrow range. 8. The vehicle according to claim 4, further comprising: first position correcting means for correcting the position data generated by the position data generating means according to the correction point information received by the correction point information receiving means. Location management device. 9. The vehicle position according to claim 1, wherein the vehicle is a taxi vehicle, and the display of the display means is used to determine the taxi vehicle to be dispatched to a customer who requests a vehicle dispatch. Management device. 10. The vehicle management according to claim 9, wherein the control station transmits polling data by designating a certain range centered on a position of a customer requesting a vehicle dispatch and a movement of a taxi vehicle. apparatus. 11. The control station has customer data storage means for storing customer data including customer location data indicating the location of a customer within a certain area, and the location data of the customer data stored in the customer data storage means. 11. The vehicle position management device according to claim 10, wherein the fixed range is determined by using. 12. The vehicle position management device, wherein the vehicle is a taxi vehicle, and the display of the display means is used to determine a taxi vehicle to be dispatched to a customer requesting vehicle allocation, wherein the control station determines the vehicle allocation. The customer station data is transmitted to the taxi vehicle, and the mobile station further has dynamic information generating means for generating dynamic information indicating the state of the vehicle. 5. The second position correction means for correcting the position data generated by the position data generation means when the movement information from the movement information generation means becomes an actual vehicle based on the customer position data. The vehicle position management device described. 13. The control station has customer data storage means for storing customer data including customer position data indicating a customer's position within a certain area, and the position data, dynamic information and the customer from the mobile station are stored. 10. The vehicle position management device according to claim 9, further comprising a vehicle allocation automatic determination means for automatically determining a taxi vehicle to be allocated based on the position data.