High-speed motor train unit vigilance pedal detection device

Abstract

The utility model relates to the technical field of high-speed motor train pedal detection, in particular to a high-speed motor train unit vigilance pedal detection device. The device comprises a pedal plate, a detection prompting mechanism and a power supply, the detection prompting mechanism comprises a single-chip microcomputer, a relay, a display screen, a buzzer and a loudspeaker, and the single-chip microcomputer is electrically connected with the display screen, the buzzer and the loudspeaker; in the utility model, during detection, the power supply is used for supplying power, after the pedal is treaded, the pedal sends a signal to the detection prompt mechanism, the singlechip receives the signal, controls the display screen to display the action interval time of each time of the pedal, detects that the action of treading the pedal is not finished in more than 30 seconds, and whether the buzzer gives an alarm or not. If the action of stepping on the pedal is not completed for more than 40 seconds, the loudspeaker can carry out voice emergency prompt, and if the two alarm detections pass, the detection is qualified.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -speed train footboard detection technical field, especially in high -speed train set alert pedal detection device. BACKGROUND

[0002] The design of the alert pedal detection device of the high-speed train set is to detect the fault of the alert pedal and prevent the train from triggering emergency braking and stopping due to the fault of the alert pedal. Through the alert pedal detection device, the failure rate of the alert pedal can be reduced, and the number of times of triggering emergency braking of the high-speed train set can be reduced.

[0003] The existing alert pedal detection is to measure whether the internal contact of the pedal is conductive through a multimeter. This detection method cannot simulate the scene of using the pedal when the driver drives the train (cannot achieve the principle detection of the pedal working principle: the control system sets that the driver needs to step on the pedal once every 30 seconds, if the pedal is not stepped on for more than 30 seconds, the buzzer alarms, and if the pedal is not stepped on for more than 40 seconds, the loudspeaker prompts the principle of emergency braking). The existing detection method is simple, the accuracy is low, and the detection pass rate is also low. SUMMARY

[0004] In order to overcome the above-mentioned shortcomings, the utility model discloses a high-speed train set alert pedal detection device, which supplies power when detecting, and gives a signal to the detection prompting mechanism after stepping on the pedal. The single-chip microcomputer receives the signal and controls the display screen to display the action interval time of each pedal. If the action of stepping on the pedal once is not completed for more than 30 seconds, the buzzer alarms, and if the action of stepping on the pedal once is not completed for more than 40 seconds, the loudspeaker gives a voice emergency prompt.

[0005] The technical solution of the utility model to solve its technical problem is:

[0006] A high-speed train set alert pedal detection device, comprising a pedal, a detection prompting mechanism for receiving the signal of the pedal and for detection prompting, and a power supply for supplying power to the pedal and the detection prompting mechanism. The detection prompting mechanism comprises a single-chip microcomputer, a relay, a display screen, a buzzer, and a loudspeaker. The relay is electrically connected to the pedal. The single-chip microcomputer is electrically connected to the relay. The single-chip microcomputer is electrically connected to the display screen, the buzzer, and the loudspeaker respectively.

[0007] As an improvement of the utility model, the loudspeaker is internally provided with a playing circuit, the playing circuit comprises a chip U1, a capacitor C8, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C6, a resistor R6, a resistor R7 and a resistor R8, the first and second pins of the chip U1 are connected with the capacitor C8, the third pin of the chip U1 is connected with one end of the capacitor C1, the other end of the capacitor C1 is connected with the fifth pin of the chip U1, the fourth pin of the chip U1 is connected with one end of the capacitor C2, the other end of the capacitor C2 is connected with the fifth pin of the chip U1, the sixth pin of the chip U1 is connected with one end of the resistor R8, the other end of the resistor R8 is connected with a transmitting end TX2, the seventh pin of the chip U1 is connected with one end of the resistor R7, and the other end of the resistor R7 is connected with a wire-wound resistor RX2; the sixteenth pin of the chip U1 is connected with the resistor R6, the twenty-second and twenty-third pins of the chip U1 are respectively connected with one end of the capacitor C3 and one end of the capacitor C6, and the other end of the capacitor C3, one end of the capacitor C6 and the twenty-fifth pin of the chip U1 are all connected with a diode.

[0008] As a further improvement of the utility model, the buzzer is internally provided with a frequency modulation circuit, the frequency modulation circuit comprises a resistor R18, a triode Q1 and a frequency modulator, the emitter of the triode Q1 is connected with a single-chip microcomputer, the base of the triode Q1 is connected with the resistor R18, and the collector of the triode Q1 is connected with the frequency modulator.

[0009] As a further improvement of the utility model, the single-chip microcomputer is electrically connected with the relay through a wire.

[0010] As a further improvement of the utility model, the single-chip microcomputer is electrically connected with the display screen, the buzzer and the loudspeaker through wires respectively.

[0011] In the utility model, when detection is carried out, power supply is powered, after a foot pedal is stepped on, the foot pedal gives a signal to a detection prompting mechanism, a single-chip microcomputer receives the signal, controls a display screen to display the action interval time of each foot pedal, detects whether the action of once stepping on the foot pedal is completed within 30 seconds, whether the buzzer will alarm, whether the loudspeaker will give a voice emergency prompt if the action of once stepping on the foot pedal is not completed within 40 seconds, and if both of the two alarm detections are passed, the detection is qualified. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to facilitate the description, the utility model is described in detail by the following preferred embodiments and drawings.

[0013] Figure 1 It is the connection block diagram of the utility model;

[0014] Figure 2 It is the circuit diagram of the playing circuit of the utility model;

[0015] Figure 3 This is a circuit diagram of the frequency modulation circuit of the present utility model;

[0016] Figure 4 This is a circuit diagram of the single chip microcomputer of the present utility model;

[0017] Figure 5 This is a display circuit diagram of the digital tube in the display screen of the utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] like Figures 1 to 5 As shown, the utility model is a high-speed EMU warning pedal detection device, which includes a foot pedal, a detection prompt mechanism for receiving a signal from the foot pedal and for detecting and prompting, and a power supply for supplying power to the foot pedal and the detection prompt mechanism.

[0020] In the present invention, the detection prompt mechanism includes a single-chip microcomputer, a relay, a display screen, a buzzer and a loudspeaker. The relay is electrically connected to the foot pedal, the single-chip microcomputer is electrically connected to the relay, and the single-chip microcomputer is electrically connected to the display screen, the buzzer and the loudspeaker respectively.

[0021] In the present invention, when conducting the test, it simulates the scenario of the driver using the pedals when driving the train, that is, it is set that the driver needs to step on the pedal once every 30 seconds (pedal: one action is counted from stepping down to lifting up, if it is stepped on all the time, it means the action is not completed and the timing continues). If the pedal is not stepped on for more than 30 seconds, the buzzer will alarm. If the pedal is not stepped on for 40 seconds, the emergency braking principle test will be prompted.

[0022] In the present invention, when the test is carried out, the power is supplied by the power supply. After stepping on the pedal, the pedal sends a signal to the detection prompt mechanism. The single-chip microcomputer receives the signal and controls the display screen to display the interval time of each pedal action. It is detected that if the pedal action is not completed once for more than 30 seconds, the buzzer will alarm. If the pedal action is not completed once for more than 40 seconds, the loudspeaker will give a voice emergency prompt. If both alarm tests are passed, the test is qualified.

[0023] Specifically, the single chip microcomputer is electrically connected to the relay through the flat cable, and the single chip microcomputer is electrically connected to the display screen, the buzzer and the loudspeaker through the flat cable respectively.

[0024] like Figure 2As shown in the utility model, the loudspeaker is internally provided with a playing circuit, the playing circuit comprises a chip U1, a capacitor C8, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C6, a resistor R6, a resistor R7 and a resistor R8, the first and second pins of the chip U1 are connected with the capacitor C8, the third pin of the chip U1 is connected with one end of the capacitor C1, the other end of the capacitor C1 is connected with the fifth pin of the chip U1, the fourth pin of the chip U1 is connected with one end of the capacitor C2, the other end of the capacitor C2 is connected with the fifth pin of the chip U1, the sixth pin of the chip U1 is connected with one end of the resistor R8, the other end of the resistor R8 is connected with a transmitting end TX2, the seventh pin of the chip U1 is connected with one end of the resistor R7, and the other end of the resistor R7 is connected with a wire-wound resistor RX2; the sixteenth pin of the chip U1 is connected with the resistor R6, and the twenty-second and twenty-third pins of the chip U1 are respectively connected with one end of the capacitor C3 and one end of the capacitor C6; the other end of the capacitor C3, one end of the capacitor C6 and the twenty-fifth pin of the chip U1 are all connected with a diode.

[0025] As Figure 3 shown in the utility model, the buzzer is internally provided with a frequency modulation circuit, the frequency modulation circuit comprises a resistor R18, a triode Q1 and a frequency modulator, the emitter of the triode Q1 is connected with a single-chip microcomputer, the base of the triode Q1 is connected with the resistor R18, and the collector of the triode Q1 is connected with the frequency modulator.

[0026] In the utility model, the circuit diagram of the single-chip microcomputer is as Figure 4 shown, and the display circuit diagram of the digital tube in the display screen is as Figure 5 shown.

[0027] In the utility model, the working condition of normal use of the motor train unit is simulated to perform detection, thereby improving the maintenance accuracy of the alert pedal.

[0028] In the utility model, the output of the buzzer and the loudspeaker is controlled, the modularization of the alert pedal detection of the high-speed motor train unit is realized, the detection pass rate of the alert pedal is improved, the problem of simple detection mode and high failure rate is solved, the single-chip microcomputer control, voice prompt and digital display function are used, the same control principle as the operation of the motor train unit is realized, and the same working condition as the existing vehicle is achieved.

[0029] The utility model reduces the failure rate of the alert pedal and reduces the number of train unit safety monitoring reports.

[0030] The above merely describes the preferred embodiment of the utility model and is not intended to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-speed train warning pedal detection device, characterized in that: It includes a foot pedal, a detection prompt mechanism for receiving signals from the foot pedal and for detecting prompts, and a power supply for powering the foot pedal and the detection prompt mechanism. The detection prompt mechanism includes a single-chip microcomputer, a relay, a display screen, a buzzer and a loudspeaker. The relay is electrically connected to the foot pedal, the single-chip microcomputer is electrically connected to the relay, and the single-chip microcomputer is electrically connected to the display screen, the buzzer and the loudspeaker respectively.

2. A high-speed train warning pedal detection device according to claim 1, characterized in that: The loudspeaker is provided with a playback circuit, which includes a chip U1, a capacitor C8, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C6, a resistor R6, a resistor R7, and a resistor R8. The 1st and 2nd pins of the chip U1 are both connected to a capacitor C8, the 3rd pin of the chip U1 is connected to one end of the capacitor C1, the other end of the capacitor C1 is connected to the 5th pin of the chip U1, the 4th pin of the chip U1 is connected to one end of the capacitor C2, the other end of the capacitor C2 is connected to the 5th pin of the chip U1, the 6th pin of the chip U1 is connected to one end of the resistor R8, the other end of the resistor R8 is connected to the transmitter TX2, the 7th pin of the chip U1 is connected to one end of the resistor R7, and the other end of the resistor R7 is connected to the wirewound resistor RX2; the 16th pin of the chip U1 is connected to the resistor R6, the 22nd and 23rd pins of the chip U1 are respectively connected to one end of the capacitor C3 and one end of the capacitor C6, the other end of the capacitor C3, one end of the capacitor C6 and the 25th pin of the chip U1 are all connected to the diode.

3. A high-speed train warning pedal detection device according to claim 2, characterized in that: The buzzer is provided with a frequency modulation circuit, which includes a resistor R18, a transistor Q1, and a frequency modulator. The emitter of the transistor Q1 is connected to the single chip microcomputer, the base of the transistor Q1 is connected to the resistor R18, and the collector of the transistor Q1 is connected to the frequency modulator.

4. A high-speed train warning pedal detection device according to claim 1, characterized in that: The single chip microcomputer is electrically connected to the relay via a wiring harness.

5. The high-speed train warning pedal detection device according to claim 1, characterized in that: The single chip microcomputer is electrically connected to the display screen, buzzer and loudspeaker respectively through flat cables.

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