JPH0672033U - Passenger rate measuring device - Google Patents

Abstract

(57) [Summary] [Purpose] To measure the boarding rate with low cost and high accuracy without being affected by measurement errors. [Structure] When a signal indicating that the vehicle is empty is received, a measurement result is requested to the load measurement circuit 7, a necessary calculation is performed on the returned measurement value, and a measurement result calculation circuit 3 that obtains the measurement result,
Measurement from the measurement result calculation circuit 3 and an empty vehicle state determination circuit 4 that determines that the vehicle is in an empty state when the vehicle type setting is forwarding or when the traveling position recognition circuit 6 arrives at the end station When there is a request, the measured value of the load is evaluated at a constant time interval, and the fluctuation determination circuit 8 and the travel control circuit 2 for determining that the fluctuation range is within a certain range over a certain time. The load values from the acceleration / deceleration determination circuit 9 and the plurality of air springs 13 that determine whether the vehicle is accelerating or decelerating based on the power running and braking signals are uniform without a difference of a certain amount or more, or within a ratio range within a certain amount. The load measuring circuit 7 has a uniformity determining circuit 10 for determining whether or not the load is within the range.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a boarding rate measuring device for measuring a load of a passenger of a train.

[0002]

[Prior art]

 In recent years, the commuting area has expanded to the suburbs, and the number of commuting from afar has increased, and most of these trains are trains. In order to operate this train efficiently, we will grasp the occupancy rate of each connected vehicle and optimize the number of trains based on that data to prevent extreme congestion and ensure economical operation. It is desirable to do.

Conventionally, this type of occupancy rate measuring device is based on the weight of the vehicle itself and the load detecting means for measuring the weight of the vehicle itself and the load of passengers in a train running by connecting a plurality of vehicles. The passenger ratio was calculated by subtracting the load of passengers.

[0004]

[Problems to be solved by the device]

 However, the occupancy rate measuring device configured in this way recognizes that the train is empty when the train is powered on in order to measure the load when the train is empty, which is the basis for calculating the load of passengers. Although it was measured, there was a risk that the empty vehicle load would be erroneously recognized if the power supply was switched during operation (when the vehicle was on board). There is also a method of storing the measured value when the vehicle is empty, but there is a problem that a device for holding the memory is required, which leads to an increase in cost.

In addition, the occupancy rate measuring device configured as described above averages a constant time (for example, 10 seconds) measured in order to cancel an error due to train sway or the like at a measurement point when measuring a load. Although the value is used as the measured value, if acceleration / deceleration or curve traveling is performed during the measurement, a measurement error may occur. There is also a method of storing a point with less shaking in advance, but there is a problem that the work for specifying the point and the device for storing the point are expensive.

Therefore, the present invention has been made in order to solve the above-mentioned conventional problems, and an object thereof is to measure the boarding rate with high accuracy at low cost without being affected by the measurement error. An object of the present invention is to provide a occupancy rate measuring device capable of performing the above.

[0007]

[Means for Solving the Problems]

 In order to achieve such an object, the present invention provides a occupancy rate measuring device for measuring the occupancy rate of a train, which is equipped with a plurality of air springs for measuring the vehicle load by using the vehicle load as pressure. Recognizing means, an empty vehicle state determining means for inputting the forwarding determination signal and the traveling position recognition signal output from the recognizing means to determine an empty vehicle state, and outputting an empty vehicle state determining signal, and the empty vehicle state determining means. When a vacant vehicle status determination signal is input from the means, a measurement request signal that requests the measurement result of the load signal from the air spring is output and the measurement result calculation means that calculates the measurement result and the measurement request signal are output. When input, the load / brake signals are used to evaluate the load values from multiple air springs at regular time intervals when the train is not accelerating or decelerating, and the fluctuation range is within a certain period over a certain period. When it is determined that the dynamic range is obtained by providing a load measuring means for outputting the measurement result calculating unit load signal from the air spring as a measurement of that point in time.

[0008]

[Action]

 The load measuring means according to the present invention provides a reliable measurement value of the empty vehicle load because the measurement values from a plurality of air springs are uniform with no difference of a certain value or more or are within a certain ratio range. measure.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of a passenger factor measuring device according to the present invention. In the figure, 20 is a train car and 30 is its wheels. 1 is a display / recording unit for displaying or recording the measurement results so that they can be easily read, 2 is a traveling control circuit for controlling the traveling of the vehicle 20 in response to a driver's command, and 3 is a signal of the empty state of the vehicle 20 Upon reception, the measurement result calculation circuit requests the load measurement circuit 7 for the measurement result, performs the necessary calculation on the returned measurement value, and obtains the measurement result.

An idle state determination circuit 4 determines whether the vehicle 20 is in the idle state when the type setting of the vehicle 20 is forwarding or when the traveling position recognition circuit 6 arrives at the final station. 5 is a forwarding determination circuit that determines a forwarding signal from the signal from the train destination / type setting device 11, and 6 is a speedometer that recognizes the stop pattern by the destination / type setting signal from the destination / type setting device 11. This is a travel position recognition circuit that calculates the travel distance based on the signal from the generator 14, recognizes that the vehicle has arrived at the station under the door opening / closing conditions, and recognizes the travel position based on these conditions.

Reference numeral 7 indicates the load signal from the air spring 13 in consideration of the conditions from the fluctuation determination circuit 8, the acceleration / deceleration determination circuit 9 and the uniformity determination circuit 10 when a measurement request is issued from the measurement result calculation circuit 3. A load measuring circuit that outputs the measured value, 8 is a fluctuation determining circuit that evaluates the measured value of the load at a constant time interval and determines that the fluctuation range is within a certain range over a certain time. , 9 are acceleration / deceleration discrimination circuits for discriminating whether the vehicle is accelerating or decelerating according to the power running and braking signals from the traveling control circuit 2.

Further, 10 is a uniformity determining circuit for determining whether the load values from the plurality of air springs 13 are uniform without having a difference of a certain value or more, or are within a ratio range within a certain value, 11 Is a destination / type setting device for the crew to set the destination and type, 12 is a door open / close condition output device for outputting the open / closed state of the door by the operation of the crew, and 13 is placed in the front / rear or left / right of the vehicle 20 and receives the load An air spring 14 that outputs pressure is a speed generator that measures the train speed by utilizing the fact that the frequency of the AC electromotive force generated by the gears attached to the axle is proportional to the rotation speed of the wheels 30.

In the occupancy rate measuring device configured as described above, the measurement result calculation circuit 3 recognizes the forwarding state of the train output from the vacancy state determination circuit 4, and if it is the forwarding state, determines that the train is vacant. , And outputs a load measurement request signal to the load measurement circuit 7. When the load measurement circuit 7 inputs a load measurement request signal, the acceleration / deceleration determination circuit 9 recognizes that the train is not in acceleration / deceleration by the signal from the power running / braking signal. The variation determination circuit 8 determines that the load value from the air spring 13 is uniform or within a ratio range within a certain range, and the variation determination circuit 8 evaluates the load value from the air spring 13 at constant time intervals, and the variation range is constant. When it is determined that the fluctuation range is within a certain range over time, the load signal from the air spring 13 is output to the measurement result calculation circuit 3 with the measured value at that time as an empty vehicle load.

FIG. 2 is a flowchart for explaining the operation of the load measuring circuit 7 from the input of the measurement request signal from the measurement result calculation circuit 3 to the output of the measured value. In the figure, buf1 is the buffer for the first level sampling (0.25 seconds x 4 times), buf2 is the buffer for the second level sampling (variation determination x 5 times), and i is the buffer buf1. , And j is the counter / pointer for buffer buf2.

Step 101: Measurement is started by a measurement request signal from the measurement result calculation circuit 3. Step 102: Initialize the counter / pointer j to 0. Step 103: Initialize the counter / pointer i to 0. Step 104: Cancel the sampling if the train is accelerating. Step 105: If the difference between the two load values (load a and load b in FIG. 1) is more than a certain value, sampling is canceled. Step 106: Input a load value into the buffer buf1. Step 107: Update the counter / pointer i. Step 108: Determine the number of first level sampling times (4 times). Step 109: Wait 0.25 seconds.

Step 110: Input the average value of the buffers buf1 [0] to buf1 [3] into the buffer buf2 [j]. Step 111: Cancel the fluctuation range determination if the second level sampling is the first time. Step 112: Compare with the previous value and determine that the difference is less than a certain value. Step 113: Update the counter / pointer j. Step 114: Determine the number of second level sampling times (five times). Step 115: The average value of the buffer buf2 [0] to the buffer buf2 [4] is output to the measurement result calculation circuit 3 as a measurement value, and the process ends.

According to the load measuring method using the load measuring circuit 7 as described above, highly accurate and reliable measurement values can be obtained because the results of a plurality of measurement points are within a certain ratio range.

According to such a configuration, the load measuring circuit 7 calculates the fluctuation range of the measurement value measured at a constant time interval at a plurality of measurement points in the train not in the acceleration / deceleration state, and the fluctuation range is calculated. Since the value was continuously small over a certain period of time, the value can be regarded as a reliable measured value, so a highly accurate measured value can be obtained.

Further, according to such a configuration, the load measuring circuit 7 controls so that the acceleration / deceleration determination circuit 9 does not input the measured value during the acceleration / deceleration of the train by the signal from the power running / braking signal. Therefore, highly accurate measured values can be obtained, and the influence of load movement during acceleration / deceleration due to train sway during load measurement can be reduced.

Further, according to such a configuration, the empty car state determination circuit 4 recognizes the forwarding state in the operating state of the train, and if it is the forwarding state, determines that it is the empty vehicle state, and measures the current state. Since a fixed value can be measured as the empty vehicle load, false recognition of the empty vehicle load, which causes a measurement error, is eliminated.

[0021]

[Effect of device]

 As described above, according to the present invention, the measurement error due to the erroneous recognition of the empty vehicle load, which causes the measurement error when measuring the boarding load of the train, and the measurement error due to the train swaying during the load measurement are relatively small. Since it can be absorbed by a simple circuit configuration, various storage devices are unnecessary, and the extremely excellent effect of being able to measure the boarding rate with high accuracy at low cost is obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a passenger factor measuring device according to the present invention.

FIG. 2 is a diagram showing a flowchart for explaining the operation of the load measuring circuit of FIG.

[Explanation of symbols]

 1 Display / Recording Section 2 Travel Control Circuit 3 Measurement Result Calculation Circuit 4 Empty Vehicle State Discrimination Circuit 5 Traveling Discrimination Circuit 6 Travel Position Recognition Circuit 7 Load Measurement Circuit 8 Fluctuation Discrimination Circuit 9 Acceleration / Deceleration Discrimination Circuit 10 Uniformity Discrimination Circuit 11 Destination / Type Setting device 12 Door opening / closing condition output device 13 Air spring 14 Speed generator 20 Vehicle 30 Wheel

Claims (1)

[Scope of utility model registration request] 1. A occupancy rate measuring device for measuring a occupancy rate of a train, comprising a plurality of air springs for measuring a vehicle load by using a vehicle load as a pressure, and recognizing means for recognizing an operating state of the train; An empty vehicle state determination means for inputting a forwarding determination signal and a traveling position recognition signal output from the means to determine an empty vehicle state and outputting an empty vehicle state determination signal, and an empty vehicle state determination signal from the empty vehicle state determination means are input. Sometimes a measurement result calculating means for outputting a measurement request signal requesting a measurement result of a load signal from the air spring and calculating the measurement result, and a train with a powering / braking signal when the measurement request signal is input. The load values from the plurality of air springs are evaluated at constant time intervals in a state where acceleration / deceleration is not being performed, and the fluctuation range is within a constant range over a fixed time. When determining the boarding rate measuring apparatus characterized by having a a load measuring means for outputting the measurement result calculating unit load signal as a measure of the time from the air spring.