JPS6195632A - Data collecting system - Google Patents

Abstract

PURPOSE:To apply optimum car allocation even when traffic regulation such as one-way traffic exist by adding running direction information of a mobile station to information transmitted from a mobile station to a base station in a taxi allocation system using a radio system. CONSTITUTION:A direction detecting processor 4 detecting the progressing direction of an automobile is provided to a mobile station side and the detected data is inputted to signal processor 2. The processor 2 transmits a mode signal representing a corresponding taxi as to whether it is an idle car or an occupied car, a position signal representing the running position, a running time and direction information obtained by the processor 4 to a base station via the radio equipment 3. The base station decides a mobile station reaching fastest a position of a customer for the taxi based on the said various kinds of information transmitted from the mobile station and informs the information to the said mobile station.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data collection method for collecting data about a large number of taxis in operation.

[Conventional technology]

Conventionally, the third mobile station using this type of data collection method was
There was something shown in the figure. In FIG. 3, 1 is a receiver that wirelessly receives signpost signals from signposts distributed at multiple locations in a certain area, and 2 is a signal processing device, which includes a central processing unit and memory (not shown). In response to the sign post signal input from the receiver 1, it stores a dynamic signal from the taximeter indicating whether the vehicle is empty or an actual vehicle and also indicates the vehicle number, and transmits these to the base station as dynamic information of the mobile station. 1. 3 is a radio device for wirelessly transmitting and receiving voice commands and responses to and from a base station (not shown), as well as transmitting dynamic information to the base station. A receiver 1, a signal processing device 2, and a radio device 3 are mounted on a running taxi and constitute one mobile station. Each mobile station is wirelessly connected to a base station via a respective sign post.

Next, the operation will be explained. As the mobile station with the above configuration moves, it successively receives signpost signals transmitted from signposts distributed at various locations. At each mobile station, when the receiver 1 receives this signpost signal, the signal processing device 2 stores this signpost signal, and uses the taximeter installed in the taxi to send a dynamic signal indicating whether the taxi is real or empty. Incorporate the
Store in memory. Note that this memory has a car number setting area, and the car number of the taxi is stored in advance in this area. Therefore, when the mobile station receives a transmission request signal from the base station via the radio 3 requesting the mobile station to transmit dynamic information, that is, data, the mobile station automatically transfers the above dynamic information from the memory of the signal processing device 2. Read out radio 3
to the base station. The base station processes the dynamic information transmitted from each mobile station in this way using a central processing unit, and displays the results on, for example, an image display device CRT. In this way, the efficiency of dispatching vehicle dispatch commands and other processing is improved.

[Problem that the invention seeks to solve]

Conventional data collection methods are configured as described above, so the base station can grasp dynamic information such as the location and vehicle number of each mobile station, but in recent cities, traffic regulations such as one-way streets are often used. Therefore, even if a certain taxi is close to the customer's location, there is a problem that it takes time to dispatch a taxi if it is necessary to take a long detour to reach the customer's location. Ta.

This invention was made in order to solve the problems of the conventional ones as described above, and it is a data collection method that can perform optimal taxi allocation based on conditions such as the location of each taxi, the location of each passenger, and traffic regulations. is intended to provide.

[Means for solving problems]

Each of the multiple taxis traveling at each location is treated as a mobile station capable of transmitting and receiving information wirelessly to a base station.
Dynamic signal indicating whether the taxi is empty or real 1. Dynamic information including a position signal indicating the driving position, driving time, and a direction signal indicating the driving direction is transmitted to the base station, and the base station controls traffic from the dynamic information received from each mobile station to the position where the vehicle should be dispatched. Data processing is performed to select the optimal mobile station considering the following conditions.

[For production]

By processing data using dynamic information including direction signals indicating the direction in which each mobile station is traveling, mobile stations can dispatch vehicles to the location of the customer in the most efficient manner, taking into account conditions such as local traffic regulations. In other words, you can choose a taxi.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure shows a block diagram of a mobile station. In FIG. 1, a receiver 1, a signal processing device 2, and a radio device 3 are the same parts as in FIG. 3. Reference numeral 4 denotes a direction detection processing device, which includes a detection section (not shown) that detects the direction of travel of the vehicle, and a conversion section that converts the detected direction of travel so that it can be easily transmitted as data. This detection unit has, for example, a geomagnetic sensor and a device that corrects the output of the geomagnetic sensor to indicate the moving direction of the mobile station at 160,000 or 8 directions, etc., and these are ordinary commercially available devices. Any device is fine.

FIG. 2 is a diagram showing a transmission format of dynamic information sent from a mobile station. As shown in the figure, the dynamic information includes, in chronological order, a synchronization signal, a dynamic signal indicating whether the vehicle is empty or a real vehicle, a position signal indicating the position where the side post signal was received, a time signal indicating the elapsed time in the receiving area of the side post signal, and It consists of a direction signal indicating the direction in which the mobile station in question is traveling, t-16.

The dynamic information from each vehicle configured as described above is transmitted in a time division multiplex format so as not to overlap with each other on the time axis.

In each mobile station configured in this way, the signal processing device 2 inputs the dynamic signal 1 position signal and time signal as described above, further reads the direction signal from the direction detection processing device [4, and transmits these signals to the radio device. 3 in the transmission format shown in FIG. In this embodiment, since the direction signal is composed of 4 bits, the direction of the mobile station can be indicated by 16 directions, but if fewer directions, such as 8 directions or 40,000 points, are acceptable, the direction signal can be used. The number of bits may be reduced.

In addition, it is practically sufficient to determine in which direction a mobile station capable of traveling should be selected based on the relative relationship between the location of the mobile station and the customer if one of the four directions can be determined. The base side selects the most suitable mobile station to allocate based on the direction signal of each mobile station.

It is also possible to input information indicating the locations of the mobile station and the customer into a computer and select a vehicle in an appropriate direction by computer processing, which produces the same effect as the above embodiment.

Furthermore, in the above embodiment, a case was explained in which the dynamic information of each mobile station collected by the base station was used, but conversely, direction information is added to the makeshift information from the base station, and only empty vehicles at the position that match this information are Processing such as responding may be performed on the mobile station side, and the same effects as in the above embodiment can be achieved.

〔Effect of the invention〕

As described above, according to the present invention, since the data collected from the mobile station is configured to include the direction information of the mobile station,
Even if there are traffic regulations such as one-way streets, optimal vehicle allocation can be made, which has the effect of increasing the efficiency of taxi use.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a data collection method according to an embodiment of the present invention, Fig. 2 is a transmission format diagram of dynamic information transmitted from the radio shown in Fig. 1, and Fig. 3 is a diagram of a conventional data collection method. It's a block diagram. Note that the same reference numerals in the figures indicate the same parts. Patent applicant Mitsubishi Electric Corporation Figure 2 9 hours Figure 3

Claims (1)

[Claims] Each taxi traveling at each point is used as a mobile station and transmits dynamic information to the base station, including a dynamic signal indicating whether the taxi is empty or an actual vehicle, a position signal indicating the traveling position, a traveling time, and a direction signal indicating the traveling direction. , a data collection method that executes data processing for selecting an optimal taxi for dispatch from the dynamic information received at the base station;