SU1075280A1 - Device for taking into account of passengers - Google Patents

Abstract

A PASSENGER ACCOUNTING DEVICE, containing sensors installed at different levels in each door door, four AND elements, triggers and counters, characterized in that, in order to increase the accuracy and reliability of the device in operation, the fifth and sixth elements AND and a delay element, the OUTPUTS of the sensors of which are connected to the input of the first element I, the output of which is directly and through the delay element connected to the inputs of the second element I, the output of which is connected to the first inputs of each trigger, the outputs of the first and second The sensors are connected respectively to the first inputs of the third and fourth elements And, the outputs of which are connected to the second inputs of the first and second triggers, respectively; the first output of the first trigger is connected to the second input of the fourth element And; the first output of the second trigger is connected to the second input of the third element And, the second the outputs of the first and second triggers are connected to the first inputs of the fifth and sixth elements AND, respectively, the output of the third sensor is connected to the second input of the third trigger, the output of which is li ne to second inputs of said fifth and sixth AND gates, the outputs of which soedi- In Nena with counters.

Description

The invention relates to a measurement technique, in particular to a technique for inspecting passenger traffic in a vehicle.

The IGN is a passenger metering device containing weight sensors connected via a converter to one of the pulse driver inputs, a car weight recorder and a frequency divider unit l.

However, this device has a low counting accuracy, since it gives only a general picture of the load, does not show the number of passengers entered and left at each stopping point.

The closest technical solution to the invention is a device containing sensors mounted on three in each pass at different levels, the analyzer

the direction in which the additional trigger input through the keys, the AND element and the differential chains is connected to the outputs of two sensors; and the additional trigger output is connected through the AND element of the third enabling sensor to the inputs of the And pulse forming circuits from the first two sensors along the line. In addition, the device contains four elements And, four trigger, keys and counters 2.

However, with this arrangement of the sensors, the circuit is brought to its initial state when all three sensors overlap, i.e. when the passenger entered the sensor installation area. When the passenger passes through the sensor installation area, they are successively opened. When one of the direction sensors (input or output) and the sensor allow it to open from the direction analyzer, the counter receives a counting signal, respectively, of an incoming or outgoing passenger.

But the simultaneous overlap of all three sensors can be not only when passing passengers, but also arising from a wave of the hand and carryable baggage, which gives a false impulse to the bill. For example, at the entrance, the passenger covers the direction sensor with his hand, and with a luggage or foot, the resolution sensor overlaps and the first opens the sensor detecting the outgoing passengers with his hand, as a result, the direction analyzer gives a false outward passenger pulse instead of the incoming passenger. A similar result can be at the exit of the passenger, only a false pulse will go to the counter of incoming passengers.

When carrying oversized baggage with dimensions that overlap all three sensors at the same time, a false counting pulse also comes from the analyzer depending on which direction sensor is opened first.

This device has insufficient accuracy of counting, is unreliable in operation, and is difficult in design. The aim of the invention is to improve the accuracy and reliability of the device.

0 This goal is achieved by having four elements AND triggers and counters in a device containing sensors installed at different levels in each door passage

5, the fifth and sixth elements And and the delay element, the outputs of the sensors of which are connected to the input of the first element And, the output of which is directly and through the delay element

Q is connected to the inputs of the second element And, the output of which is connected to the first inputs of each trigger, the outputs of the first and second sensors are connected respectively to the first inputs

5 of the third and fourth elements And, the outputs of which are connected to the second inputs of the first and second flip-flops, respectively, the first output of the first flip-flop is connected to the second input

Q of the fourth element And, the first output of the second trigger is connected to the second input of the third element And, the second outputs of the first and second triggers are connected to the first inputs of the fifth and sixth elements And, respectively, the output of the third sensor is connected to the second input of the third trigger, the output of which is connected to the second inputs of the fifth and sixth elements And, the outputs of which are connected to the counters.

The drawing shows a functional block diagram of the device.

The device contains sensors 1-3 (e.g., infrared radiation,

5 ultrasound, etc.) mounted on different levels in the door aisle, elements AND 4-9, delay element 10 and triggers 11-13.

Q The outputs of sensors 1-3 are connected to the first element And 4 and at the same time the outputs of sensors 1 and 2 are connected to the third and fourth elements And 5 and 7, and the outputs of sensor 3 to one - from the inputs of the third trigger 13, the second inputs of elements And 5 and 6 connected to the outputs of the first and second flip-flops 11 and 12, the second outputs of the flip-flops 11-13 are connected to the elements And 8 and 9, and the installation inputs

0 flip-flops 11-13 are connected to the output of an AND 6 element, whose inputs are connected to the output of the first AND 4 element and the delay element 10.

The device works as follows.

When a passenger passes through the installation sites of sensors 1-3 and simultaneously blocking all three sensors from the outputs of these sensors 1-3, a signal arrives at the input of the first element 4, which gives a signal to start the delay block 10 and at one of the inputs of the second element 6.

When sensors overlap 1-3, the time is longer than the response time of delay unit 10, i.e. when the signals at the inputs of the second element And 6 from the element 4 and the delay unit 10 from the output of the second element 6 coincide, a signal is generated for setting the triggers 11-13 to the initial state in order to prepare for the start of counting. In this case, one of the inputs of the elements And 5 and 7 from trigger 11 and 12 receives a signal corresponding to the sensor open signal.

When a passenger passes, i.e. when one of the sensors is opened, for example 1, a signal is received at the second input of the third element And 5, which generates at the output of the third AND 5 a signal that translates the trigger 11: In the reverse state.

The output signal of the trigger 11 blocks the fourth element AND 7 and at the same time generates a signal to one of the inputs of the fifth element AND 8, and the next opening of the sensor triggers the trigger And 3, the signal corresponding to the signal at the first input is generated at the other input of the fifth element 8 element 8. And 8. If the input signals at the output of element 8 coincide, a pulse is generated to the counter 1 in the forward direction (not shown).

The device’s circuit works similarly when the first sensor opens 2, and the element 5 is blocked, and the signal to the counter of the reverse direction (not shown) from the element 4

does not arrive at block 10 delay

the circuit is not reset. With a short-term exposure to all three sensors 1-3, the time is shorter than the dwell time of the element

5 10 delays, because the signal is misaligned to the inputs of the element And 7, to the triggers 11-13, there is no signal to bring them to the initial state, i.e. the device does not give a false pulse to the passenger counters.

The invention makes it possible to increase the reliability of the device by excluding. There are six elements, so if in the known device there were six triggers, four AND cells, three keys, three differential chains, then in the proposed device, respectively, there were only three triggers, six AND cells and a delay element. The introduction of a delay element has reduced false positives.

When testing a prototype made according to the invention, the counting accuracy was 8-10%, i.e. increased by about 50%.

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Claims (1)

DEVICE FOR ACCOUNTING PASSENGERS, containing sensors installed at different levels in each passage of the door, four I elements, triggers and counters, characterized in that, in order to increase the accuracy and reliability of the device in operation, the fifth and sixth elements I and element are introduced into it delays, the outputs of the sensors of which are connected to the input of the first element And, the output of which is directly and through the delay element connected to the inputs of the second element And, the output of which is connected to the first inputs of each trigger, the outputs of the first and second sensors kov are connected respectively to the first inputs of the third and fourth elements And, the outputs of which are connected to the second inputs of the first and second triggers, respectively, the first output of the first trigger is connected to the second input of the fourth element And, the first output of the second trigger is connected to the second input of the third element And, the second outputs the first and second triggers are connected to the first inputs of the fifth and sixth elements And, accordingly, the output of the third sensor is connected to the second input of the third trigger, the output of which is connected to the second input odes of the fifth and sixth elements And, the outputs of which are connected to counters.