CN221100864U - Locomotive signal sensitivity testing device - Google Patents
Locomotive signal sensitivity testing device Download PDFInfo
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- CN221100864U CN221100864U CN202323027356.8U CN202323027356U CN221100864U CN 221100864 U CN221100864 U CN 221100864U CN 202323027356 U CN202323027356 U CN 202323027356U CN 221100864 U CN221100864 U CN 221100864U
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Abstract
The utility model discloses a locomotive signal sensitivity testing device, and relates to a locomotive current and voltage sensitivity testing device. The purpose is in order to overcome the problem that current sensitivity can't be measured to current signal sensitivity testing arrangement and current sensitivity measurement have the potential safety hazard, includes: the control unit is connected with the first code sending control unit and the second code sending control unit; the first code sending control unit and the second code sending control unit are respectively and electrically connected with an induction FSK signal input end of the locomotive signal host through a first code sending induction coil and a second code sending induction coil; the locomotive signal host is connected with the lamp color acquisition unit; the lamp color acquisition unit is connected with the current and voltage acquisition unit; the sensing FSK signal output end of the locomotive signal host is connected with the sensing FSK signal input end of the current and voltage acquisition unit; the current and voltage acquisition unit acquires the voltage value of the induction FSK signal and calculates the voltage value to obtain a current value, wherein the current value represents the sensitivity of the locomotive current signal.
Description
Technical Field
The utility model relates to a current and voltage sensitivity testing device of a locomotive.
Background
Although the existing cab signal sensitivity testing device can measure and display the sensitivity value, the measuring device only simply tests the voltage sensitivity of cab signal equipment and cannot test the current sensitivity. The rail current value is required to be seen for the overall reception sensitivity of the cab signal equipment, as specified by the standards regarding sensitivity.
The current sensitivity of the existing equipment is that a loop is paved below a steel rail by one person, the detection equipment is connected with a locomotive signal host by one person, an operator needs to send track circuit system signals in the loop through portable equipment under the locomotive, the coil can sense corresponding voltage values according to the law of electromagnetic induction and ampere law, code current is sent through adjusting the loop, and the operator on the locomotive observes a annunciator until the locomotive equipment outputs information.
The measurement of the current sensitivity requires that two people and vehicles get on and off to be matched together, the operation is complex, and a loop wire is required to be paved on the steel rail; however, when the locomotive stays outside the warehouse and no trench exists below the locomotive, the personnel are very difficult to lay the detection loop, and the personnel are required to drill at the bottom of the locomotive, so that potential safety hazards exist; the test function is single, and is efficient, causes personnel extravagant.
Disclosure of utility model
The utility model aims to solve the problems that the current sensitivity cannot be measured by the existing locomotive signal sensitivity testing device and potential safety hazards exist in the existing current sensitivity measurement, and provides the locomotive signal sensitivity testing device.
The utility model relates to a locomotive signal sensitivity testing device, which comprises a testing host, a first encoder and a second encoder;
the test host comprises a control unit, a current and voltage acquisition unit and a lamp color acquisition unit;
the first encoder comprises a first encoding control unit and a first encoding induction coil;
the second code transmitter comprises a second code transmitting control unit and a second code transmitting induction coil;
the current sensitivity test instruction output end of the control unit is electrically connected with the current sensitivity test instruction input ends of the first code sending control unit and the second code sending control unit at the same time;
The first code sending control unit receives the current sensitivity test instruction and then generates a first FSK signal; the first FSK signal output end of the first code sending control unit can be electrically connected with the induction FSK signal input end of the locomotive signal host through a first code sending induction coil and one locomotive induction coil in the locomotive signal vehicle-mounted system in sequence;
The second code sending control unit receives the current sensitivity test instruction and generates a second FSK signal; the second FSK signal output end of the second code sending control unit can be electrically connected with the induction FSK signal input end of the cab signal host through the second code sending induction coil and the other cab induction coil in the cab signal vehicle-mounted system in sequence; and the first FSK signal is 180 degrees out of phase with the second FSK signal;
The locomotive signal host is capable of decoding the induction FSK signal to obtain a first decoded signal; the first decoding signal output end of the locomotive signal host is electrically connected with the first decoding signal input end of the lamp color acquisition unit;
the light color acquisition unit can detect whether the locomotive signal host outputs a light color corresponding to the first FSK signal or the second FSK signal according to the first decoding signal; generating a current value acquisition instruction when the current value acquisition instruction is detected, wherein the current value acquisition instruction output end of the lamp color acquisition unit is electrically connected with the current value acquisition instruction input end of the current voltage acquisition unit;
The sensing FSK signal output end of the locomotive signal host is electrically connected with the sensing FSK signal input end of the current and voltage acquisition unit;
after receiving the current value acquisition instruction, the current voltage acquisition unit can acquire the voltage value of the induction FSK signal and calculate the voltage value to obtain a current value, wherein the current value represents the sensitivity of the locomotive current signal.
Further, the first encoder further comprises a first wireless communication device; the second encoder further includes a second wireless communication device; the test host also comprises a third wireless communication device;
The current sensitivity test instruction output end of the control unit is electrically connected with the current sensitivity test instruction input end of the first code-sending control unit sequentially through the third wireless communication device and the first wireless communication device;
The current sensitivity test instruction output end of the control unit is also electrically connected with the current sensitivity test instruction input end of the second code sending control unit through the third wireless communication device and the second wireless communication device in sequence.
Further, the test host also comprises a signal generation unit;
The third FSK signal output end of the signal generation unit is electrically connected with the locomotive signal host and the third FSK signal input end of the current and voltage acquisition unit at the same time;
The locomotive signal host is capable of decoding the third FSK signal to obtain a second decoded signal; the second decoding signal output end of the locomotive signal host is electrically connected with the second decoding signal input end of the lamp color acquisition unit;
The light color acquisition unit can detect whether the locomotive signal host outputs the light color corresponding to the third FSK signal according to the second decoding signal; generating a voltage value acquisition instruction when the voltage value acquisition instruction is detected, wherein the voltage value acquisition instruction output end of the lamp color acquisition unit is electrically connected with the voltage value acquisition instruction input end of the current and voltage acquisition unit;
The current and voltage acquisition unit acquires the voltage value of the third FSK signal after receiving the voltage value acquisition instruction; the voltage value represents the locomotive voltage signal sensitivity.
Further, the signal generating unit, the current and voltage acquisition unit and the lamp color acquisition unit are electrically connected with an LX30 interface of the cab signal host through cables.
Further, the first encoder further comprises a first encoding power supply;
the first code sending power supply can supply power to the first code sending control unit, the first code sending induction coil and the first wireless communication device;
the second code sender comprises a second code sending power supply;
The second code power supply is capable of supplying power to the second code control unit, the second code induction coil, and the second wireless communication device.
Further, the test host also comprises a display unit;
The current value display output end and the voltage value display output end of the current and voltage acquisition unit are respectively and electrically connected with the current value display input end and the voltage value display input end of the display unit.
Further, the test host also comprises a storage unit;
The current value data output end and the voltage value data output end of the current and voltage acquisition unit are electrically connected with the data input end of the storage unit.
Further, the test host also comprises a host key unit;
the key trigger signal output end of the host key unit is electrically connected with the work trigger signal input end of the signal generation unit.
Further, the test host also comprises a host power supply;
The host power supply can supply power to the signal generating unit, the current and voltage acquisition unit, the lamp color acquisition unit, the third wireless communication device, the display unit, the storage unit and the host key unit.
Further, the first wireless communication device, the second wireless communication device and the third wireless communication device are a Lora communication device, a WiFi communication device, a bluetooth communication device or a Zigbee communication device.
The beneficial effects of the utility model are as follows:
the utility model can test the whole receiving sensitivity (current sensitivity) of the locomotive signal vehicle-mounted equipment.
The utility model is provided with the code transmitters, and can be arranged under the steel rail respectively to correspond to the machine induction coils, so that the installation is convenient, simple and quick; the 2 code transmitters transmit the track circuit signals simultaneously, and the 2 machine induction coils can simultaneously sense the track circuit signals through mutual inductance, so that the purpose of simulating loop wires is achieved, and the problem that potential safety hazards exist in current sensitivity measurement is avoided.
Drawings
FIG. 1 is a schematic diagram of a cab signal sensitivity test apparatus and a cab signal vehicle-mounted system according to the present utility model;
FIG. 2 is a schematic diagram of a test host in a cab signal sensitivity test apparatus according to the present utility model;
FIG. 3 is a schematic diagram of a first encoder in the cab signal sensitivity test device according to the present utility model;
FIG. 4 is a schematic diagram of a second encoder in the cab signal sensitivity test device according to the present utility model;
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
Detailed description of the preferred embodiments
The locomotive signal sensitivity testing device of the embodiment comprises a testing host 1, a first encoder 2 and a second encoder 3;
The test host 1 comprises a control unit 1-0, a current and voltage acquisition unit 1-2 and a lamp color acquisition unit 1-3;
the first encoder 2 comprises a first encoding control unit 2-1 and a first encoding induction coil 2-2;
the second code sender 3 comprises a second code sending control unit 3-1 and a second code sending induction coil 3-2;
The current sensitivity test instruction output end of the control unit 1-0 is electrically connected with the current sensitivity test instruction input ends of the first code sending control unit 2-1 and the second code sending control unit 3-1 at the same time;
The first code sending control unit 2-1 receives the current sensitivity test instruction and then generates a first FSK signal; the first FSK signal output end of the first code sending control unit 2-1 can be electrically connected with the induction FSK signal input end of the cab signal host 4 through the first code sending induction coil 2-2 and one cab induction coil 5 in the cab signal vehicle-mounted system in sequence;
The second code sending control unit 3-1 receives the current sensitivity test instruction and then generates a second FSK signal; the second FSK signal output end of the second code sending control unit 3-1 can be electrically connected with the induction FSK signal input end of the cab signal host 4 through the second code sending induction coil 3-2 and the other cab induction coil 5 in the cab signal vehicle-mounted system in sequence; and the first FSK signal is 180 degrees out of phase with the second FSK signal;
The locomotive signal host 4 is capable of decoding the induced FSK signal to obtain a first decoded signal; the first decoding signal output end of the locomotive signal host 4 is electrically connected with the first decoding signal input end of the lamp color acquisition unit 1-3;
The light color acquisition unit 1-3 is capable of detecting whether the cab signal host 4 outputs a light color corresponding to the first FSK signal or the second FSK signal according to the first decoded signal; generating a current value acquisition instruction when the current value acquisition instruction is detected, wherein the current value acquisition instruction output end of the lamp color acquisition unit 1-3 is electrically connected with the current value acquisition instruction input end of the current voltage acquisition unit 1-2;
The induction FSK signal output end of the locomotive signal host 4 is electrically connected with the induction FSK signal input end of the current and voltage acquisition unit 1-2;
After receiving the current value acquisition instruction, the current and voltage acquisition unit 1-2 can acquire the voltage value of the induction FSK signal and calculate the voltage value to obtain a current value, wherein the current value represents the sensitivity of the locomotive current signal.
Detailed description of the preferred embodiments
The present embodiment is a further explanation of the first embodiment, in which the first encoder 2 further includes the first wireless communication apparatus 2-3; the second transcoder 3 further comprises second wireless communication means 3-3; the test host 1 further comprises a third wireless communication device 1-4;
The current sensitivity test instruction output end of the control unit 1-0 is electrically connected with the current sensitivity test instruction input end of the first code sending control unit 2-1 sequentially through the third wireless communication device 1-4 and the first wireless communication device 2-3;
The current sensitivity test instruction output end of the control unit 1-0 is also electrically connected with the current sensitivity test instruction input end of the second code sending control unit 3-1 through the third wireless communication device 1-4 and the second wireless communication device 3-3 in sequence.
Other technical features of the present embodiment are exactly the same as those of the first embodiment.
Detailed description of the preferred embodiments
In this embodiment, the test host 1 further includes a signal generating unit 1-1;
The voltage sensitivity test instruction output end of the control unit 1-0 is electrically connected with the voltage sensitivity test instruction input end of the signal generation unit 1-1;
The signal generating unit 1-1 receives the voltage sensitivity test instruction and then generates a third FSK signal; the third FSK signal output end of the signal generation unit 1-1 is electrically connected with the locomotive signal host 4 and the third FSK signal input end of the current and voltage acquisition unit 1-2 at the same time;
The cab signal host 4 can decode the third FSK signal to obtain a second decoded signal; the second decoding signal output end of the locomotive signal host 4 is electrically connected with the second decoding signal input end of the lamp color acquisition unit 1-3;
The light color acquisition unit 1-3 can detect whether the cab signal host 4 outputs a light color corresponding to the third FSK signal according to the second decoding signal; generating a voltage value acquisition instruction when the voltage value acquisition instruction is detected, wherein the voltage value acquisition instruction output end of the lamp color acquisition unit 1-3 is electrically connected with the voltage value acquisition instruction input end of the current and voltage acquisition unit 1-2;
The current and voltage acquisition unit 1-2 acquires the voltage value of the third FSK signal after receiving the voltage value acquisition instruction; the voltage value represents the locomotive voltage signal sensitivity.
Other technical features of the present embodiment are exactly the same as those of the first or second embodiment.
Detailed description of the preferred embodiments
In this embodiment, the signal generating unit 1-1, the current and voltage collecting unit 1-2, and the light color collecting unit 1-3 are all electrically connected to the LX30 interface of the cab signal host 4 through cables.
Other technical features of the present embodiment are exactly the same as those of the third embodiment.
Detailed description of the preferred embodiments
This embodiment is further described in the first, second or fourth embodiment, in which the first encoder 2 further includes a first encoding power source 2-4;
The first code transmitting power source 2-4 is capable of supplying power to the first code transmitting control unit 2-1, the first code transmitting induction coil 2-2 and the first wireless communication device 2-3;
the second code sender 3 comprises a second code sending power supply 3-4;
The second code transmitting power source 3-4 is capable of supplying power to the second code transmitting control unit 3-1, the second code transmitting induction coil 3-2 and the second wireless communication device 3-3.
Other technical features of the present embodiment are exactly the same as those of the first, second or fourth embodiments.
Detailed description of the preferred embodiments six
This embodiment is further described in the fourth embodiment, in which the test host 1 further includes the display unit 1-5;
The current value display output end and the voltage value display output end of the current and voltage acquisition unit 1-2 are respectively and electrically connected with the current value display input end and the voltage value display input end of the display unit 1-5.
Other technical features of the present embodiment are exactly the same as those of the fourth embodiment.
Detailed description of the preferred embodiments
This embodiment is further described in the fourth or sixth embodiment, in which the test host 1 further includes the storage units 1 to 6;
The current value data output end and the voltage value data output end of the current and voltage acquisition unit 1-2 are electrically connected with the data input end of the storage unit 1-6.
Other technical features of the present embodiment are exactly the same as those of the fourth or sixth embodiment.
Detailed description of the preferred embodiments
This embodiment is a further description of the seventh embodiment, in which the test host 1 further includes host key units 1-7;
The key trigger signal output end of the host key unit 1-7 is electrically connected with the work trigger signal input end of the signal generating unit 1-1.
Other technical features of the present embodiment are exactly the same as those of the seventh embodiment.
Detailed description of the preferred embodiments nine
This embodiment is a further description of the eighth embodiment, in which the test host 1 further includes host power supplies 1-8;
The host power supply 1-8 can supply power to the signal generating unit 1-1, the current and voltage acquisition unit 1-2, the lamp color acquisition unit 1-3, the third wireless communication device 1-4, the display unit 1-5, the storage unit 1-6 and the host key unit 1-7.
Other technical features of the present embodiment are exactly the same as those of the eighth embodiment.
Detailed description of the preferred embodiments
The present embodiment is further described with respect to the second, fourth, sixth, eighth, or ninth embodiments, in which the first wireless communication apparatus 2-3, the second wireless communication apparatus 3-3, and the third wireless communication apparatus 1-4 are a Lora communication apparatus, a WiFi communication apparatus, a bluetooth communication apparatus, or a Zigbee communication apparatus.
Other technical features of the present embodiment are exactly the same as those of the second, fourth, sixth, eighth or ninth embodiments.
Examples
In the railway train control system of China, a track circuit is mainly adopted to realize ground train information transmission, and the main function of the cab signal equipment is to receive and identify information transmitted by the ground track circuit equipment. The sensitivity reflects the receiving capability of the locomotive signal equipment, the anti-jamming capability is poor when the sensitivity is too high (the signal can be decoded even when the signal is smaller), and the error decoding is easy to cause the error lamp-up; too low a sensitivity (the signal needs to be larger to decode) and it is easy to not decode resulting in no lamp up or down.
The receiving sensitivity of the whole equipment during receiving shall meet the specification of the steel rail short-circuit current value in the 'TB 3287-2013 locomotive signal vehicle-mounted system equipment', and the equipment host machine shall meet the specification of the host machine voltage value in the standard during receiving according to the voltage value alone.
The utility model provides a cab signal sensitivity testing device, which can receive a receiving coil track circuit signal (induction FSK signal) of a host board of A system or B system through a cab signal host 4 testing interface LX30 in a cab signal vehicle-mounted system. The corresponding principle can also be adopted to test the strain time and the input and output functions of the cab signal host.
As shown in fig. 1, the cab signal sensitivity test apparatus of the present invention is constituted by: the cab signal sensitivity test device of the present invention is connected to the LX30 interface of the cab signal host computer 4 through a test cable.
The LX30 interface comprises switching value information such as lamp color, speed grade, insulating section, up/down and 2 machine induction coil signals; providing a track circuit mode signal or a track circuit mode signal induced by a sensor coil of the acquisition machine to a locomotive signal host through an LX30 end so as to test voltage sensitivity and current sensitivity; and can provide the track circuit mode signal to the host computer of the locomotive signal through LX30 end, and gather the switching value information such as the lamp color, speed grade, etc., realize the detection of strain time and input output function.
As shown in fig. 2, the internal structure of the test host 1 includes a main control unit, a third wireless communication device 1-4, a display unit 1-5, a storage unit 1-6, a host key unit 1-7, a power management unit and a test interface.
The main control unit: a DSP or other MCU may be used as a data processor for configuration as a control unit 1-0, a signal generating unit 1-1, a current voltage collecting unit 1-2 and a lamp color collecting unit 1-3. The control unit 1-0 is used for coordinating the working flow of other units; the signal generating unit 1-1 sends FSK signals to a locomotive signal host; the current and voltage acquisition unit 1-2 is internally provided with an ADC sampling channel, so that rail circuit system signals sensed by the receiving coil can be acquired, and the lamp color acquisition unit 1-3 can acquire lamp colors; or can be configured as a corresponding unit for collecting switching value information such as speed level.
Display unit 1-5: and displaying locomotive information and current test content, and selecting a touch screen.
Host key units 1-7: the display screen comprises a startup key, a shutdown key, a confirmation key, a return key and a direction key, and can be operated by using keys if the touch of the display screen is bad;
Memory cells 1-6: the system is used for storing test data and can perform historical query on the previous test results; and the manual recording is not needed, so that the labor cost is reduced.
Third wireless communication apparatus 1-4: when the sensitivity of the cab signal vehicle-mounted equipment is tested on the existing site, the cab signal vehicle-mounted equipment needs to be tested by using an indoor cab signal test bench after being taken off; the testing method brings great inconvenience to site operators, needs to make multiple trips to and from locomotives and rooms, consumes manpower and material resources and increases testing cost. And the disassembly equipment also increases the fault risk for the equipment application, and influences the railway operation safety.
Using the third wireless communication apparatus 1-4 (the wireless transmission module may be Lora, wiFi, bluetooth, zigbee, etc.), the first encoder 2 and the second encoder 3 may be connected and controlled;
The on-vehicle testing device (the testing host 1) is in wireless connection with the first encoder 2 and the second encoder 3 under the vehicle through the third wireless communication device 1-4, and the sensitivity test can be completed by only one person.
And (3) power management: the 110V voltage in the interface of locomotive LX30 can be obtained to power test host 1, and the device converts 110V power to test device low voltage operating power.
Test interface: for collecting host related output information of the cab signal and transmitting the FSK signal through the interface.
As shown in fig. 3 and 4, the first encoder 2 and the second encoder 3 are structured.
The first wireless communication apparatus 2-3 and the second wireless communication apparatus 3-3: the method comprises the steps of respectively receiving current sensitivity test instructions from a cab signal sensitivity test host 1 and maintaining heartbeat with the host to judge whether normal connection is carried out;
A first code transmission control unit 2-1 and a second code transmission control unit 3-1: according to the instruction of the test host 1, FSK signals (a first FSK signal and a second FSK signal) with corresponding amplitude are sent to the induction coil; and can collect the switching value information output such as the locomotive signal host lamp color, the speed grade, etc.
A first code-transmitting induction coil 2-2 and a second code-transmitting induction coil 3-2: mutual inductance is formed between the first FSK signal and the second FSK signal in the first code sending induction coil 2-2 and the second code sending induction coil 3-2 are respectively acquired by the machine induction coils 5, so that induction FSK signals are obtained;
a code sender display unit: the method mainly comprises the steps of mainly displaying carrier frequency and low frequency of a track circuit signal required to be tested in a current sensitivity test instruction sent by a test host 1;
Code sender key unit: for powering on or off the first encoder 2 and the second encoder 3;
A first code-transmitting power supply 2-4 and a second code-transmitting power supply 3-4: the lithium battery is selected, the first code sending power supply 2-4 and the second code sending power supply 3-4 can charge the first code sending device 2 and the second code sending device 3 through an external charger, and in normal operation, the lithium battery is used for supplying working power to other electronic devices in the first code sending device 2 and the second code sending device 3.
The first and second encoders 2 and 3 simultaneously transmit track circuit signals (first and second FSK signals) with the first and second FSK signals being 180 ° out of phase.
The concrete working process
1. When the voltage sensitivity test device selects the voltage sensitivity test, the test device sends a third FSK signal with the lower limit value of the voltage of the test carrier frequency sensitivity to the cab signal host 4, and detects whether the cab signal host 4 is on or not, if not, the signal generating unit 1-1 gradually increases the lower limit value of the transmitting code until the cab signal host 4 is on, and the voltage value at the moment is the carrier frequency voltage sensitivity.
2. When the current sensitivity test of the cab signal sensitivity test device is carried out, the following operations are needed:
a. the staff starts the first encoder 2 and the second encoder 3, and after starting, the first encoder 2 and the second encoder 3 automatically complete pairing;
b. The first encoder 2 is placed on a steel rail below one machine induction coil 5, and the second encoder 3 is placed on a steel rail below the other machine induction coil 2;
c. The staff gets on the bus, connect the test host 1 of the sensitivity testing device of the cab signal to the interface of the cab signal host 4LX30 with the test cable;
d. The test host 1 can see the signal strengths of the two first encoders 2 and the second encoder 3 (acquired by the first wireless communication device 2-3 and the second wireless communication device 3-3) through the display unit 1-5, and then perform corresponding functional tests;
The specific test flow is as follows:
The test host 1 sends out a current sensitivity test instruction;
The first code sending control unit 2-1 and the second code sending control unit 3-1 respectively send a first FSK signal and a second FSK signal to the induction coil according to the current sensitivity test instruction;
The first code sending induction coil 2-2 and the second code sending induction coil 3-2 respectively form mutual inductance with the two machine induction coils 5, and the machine induction coils 5 respectively acquire a first FSK signal and a second FSK signal in the first code sending induction coil 2-2 and the second code sending induction coil 3-2 to obtain an induction FSK signal;
The locomotive signal host 4 generates a first decoding signal after obtaining an induction FSK signal and sends the first decoding signal to the lamp color acquisition unit 1-3, the lamp color acquisition unit 1-3 detects whether the locomotive signal host 4 is on or not, if the locomotive signal host 4 is not on, the first code sending control unit 2-1 and the second code sending control unit 3-1 increase the amplitude values of the first FSK signal and the second FSK signal until the locomotive signal host 4 is on, at the moment, the current voltage acquisition unit (1-2) acquires the voltage values of the first FSK signal and the second FSK signal and calculates the (equivalent) current value through the existing algorithm by utilizing the voltage-current conversion circuit; the voltage value is indicative of a cab voltage signal sensitivity.
E. after the test is finished, the test results can be stored in the storage units 1-6, and can be inquired in the historical data.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the different dependent claims and the features herein may be combined in ways other than as described in the original claims. It is also to be understood that features described in connection with separate embodiments may be used in other embodiments.
Claims (10)
1. The locomotive signal sensitivity testing device is characterized by comprising a testing host (1), a first encoder (2) and a second encoder (3);
The test host (1) comprises a control unit (1-0), a current and voltage acquisition unit (1-2) and a lamp color acquisition unit (1-3);
The first encoder (2) comprises a first encoding control unit (2-1) and a first encoding induction coil (2-2);
the second code sender (3) comprises a second code sending control unit (3-1) and a second code sending induction coil (3-2);
The current sensitivity test instruction output end of the control unit (1-0) is electrically connected with the current sensitivity test instruction input ends of the first code sending control unit (2-1) and the second code sending control unit (3-1) at the same time;
The first code sending control unit (2-1) receives a current sensitivity test instruction and then generates a first FSK signal; the first FSK signal output end of the first code sending control unit (2-1) can be electrically connected with the induction FSK signal input end of the locomotive signal host (4) through the first code sending induction coil (2-2) and one locomotive induction coil (5) in the locomotive signal vehicle-mounted system in sequence;
The second code sending control unit (3-1) receives the current sensitivity test instruction and then generates a second FSK signal; the second FSK signal output end of the second code sending control unit (3-1) can be electrically connected with the induction FSK signal input end of the locomotive signal host (4) through the second code sending induction coil (3-2) and the other locomotive induction coil (5) in the locomotive signal vehicle-mounted system in sequence; and the first FSK signal is 180 degrees out of phase with the second FSK signal;
The locomotive signal host (4) can decode the induction FSK signal to obtain a first decoded signal; the first decoding signal output end of the locomotive signal host (4) is electrically connected with the first decoding signal input end of the lamp color acquisition unit (1-3);
The light color acquisition unit (1-3) can detect whether the locomotive signal host (4) outputs a light color corresponding to a first FSK signal or a second FSK signal according to a first decoding signal; generating a current value acquisition instruction when the current value acquisition instruction is detected, wherein the current value acquisition instruction output end of the lamp color acquisition unit (1-3) is electrically connected with the current value acquisition instruction input end of the current voltage acquisition unit (1-2);
the induction FSK signal output end of the locomotive signal host (4) is electrically connected with the induction FSK signal input end of the current and voltage acquisition unit (1-2);
After receiving a current value acquisition instruction, the current and voltage acquisition unit (1-2) can acquire the voltage value of the induction FSK signal and calculate the voltage value to obtain a current value, wherein the current value represents the sensitivity of a locomotive current signal.
2. The cab signal sensitivity test device according to claim 1, wherein the first encoder (2) further includes a first wireless communication device (2-3); the second encoder (3) further comprises a second wireless communication device (3-3); the test host (1) further comprises a third wireless communication device (1-4);
The current sensitivity test instruction output end of the control unit (1-0) is electrically connected with the current sensitivity test instruction input end of the first code-sending control unit (2-1) through the third wireless communication device (1-4) and the first wireless communication device (2-3) in sequence;
The current sensitivity test instruction output end of the control unit (1-0) is electrically connected with the current sensitivity test instruction input end of the second code sending control unit (3-1) through the third wireless communication device (1-4) and the second wireless communication device (3-3) in sequence.
3. The cab signal sensitivity test device according to claim 1 or 2, wherein the test host (1) further includes a signal generation unit (1-1);
The voltage sensitivity test instruction output end of the control unit (1-0) is electrically connected with the voltage sensitivity test instruction input end of the signal generation unit (1-1);
The signal generating unit (1-1) generates a third FSK signal after receiving a voltage sensitivity test instruction; the third FSK signal output end of the signal generation unit (1-1) is electrically connected with the locomotive signal host (4) and the third FSK signal input end of the current and voltage acquisition unit (1-2) at the same time;
The locomotive signal host (4) can decode the third FSK signal to obtain a second decoded signal; the second decoding signal output end of the locomotive signal host (4) is electrically connected with the second decoding signal input end of the lamp color acquisition unit (1-3);
The light color acquisition unit (1-3) can detect whether the locomotive signal host (4) outputs the light color corresponding to the third FSK signal according to the second decoding signal; generating a voltage value acquisition instruction when the voltage value acquisition instruction is detected, wherein the voltage value acquisition instruction output end of the lamp color acquisition unit (1-3) is electrically connected with the voltage value acquisition instruction input end of the current voltage acquisition unit (1-2);
The current and voltage acquisition unit (1-2) acquires the voltage value of the third FSK signal after receiving the voltage value acquisition instruction; the voltage value is indicative of a cab voltage signal sensitivity.
4. A cab signal sensitivity test apparatus according to claim 3, wherein the signal generating unit (1-1), the current-voltage collecting unit (1-2) and the lamp color collecting unit (1-3) are electrically connected to the LX30 interface of the cab signal host (4) through cables.
5. The cab signal sensitivity test device according to claim 1, 2 or 4, wherein the first encoder (2) further includes a first encoder power supply (2-4);
The first code sending power supply (2-4) can supply power to the first code sending control unit (2-1), the first code sending induction coil (2-2) and the first wireless communication device (2-3);
The second code sender (3) comprises a second code sending power supply (3-4);
The second code transmitting power supply (3-4) can supply power to the second code transmitting control unit (3-1), the second code transmitting induction coil (3-2) and the second wireless communication device (3-3).
6. The cab signal sensitivity test device according to claim 4, wherein the test host (1) further includes a display unit (1-5);
The current value display output end and the voltage value display output end of the current and voltage acquisition unit (1-2) are respectively and electrically connected with the current value display input end and the voltage value display input end of the display unit (1-5).
7. The cab signal sensitivity test device according to claim 4 or 6, wherein the test host (1) further comprises a memory unit (1-6);
The current value data output end and the voltage value data output end of the current and voltage acquisition unit (1-2) are electrically connected with the data input end of the storage unit (1-6).
8. The cab signal sensitivity test device according to claim 7, wherein the test host (1) further includes a host key unit (1-7);
The key trigger signal output end of the host key unit (1-7) is electrically connected with the work trigger signal input end of the signal generation unit (1-1).
9. The cab signal sensitivity test device according to claim 8, wherein the test host (1) further comprises a host power supply (1-8);
The host power supply (1-8) can supply power to the signal generation unit (1-1), the current and voltage acquisition unit (1-2), the lamp color acquisition unit (1-3), the third wireless communication device (1-4), the display unit (1-5), the storage unit (1-6) and the host key unit (1-7).
10. The cab signal sensitivity test device according to claim 2, 4, 6, 8 or 9, wherein the first wireless communication device (2-3), the second wireless communication device (3-3) and the third wireless communication device (1-4) are Lora communication devices, wiFi communication devices, bluetooth communication devices or Zigbee communication devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323027356.8U CN221100864U (en) | 2023-11-09 | 2023-11-09 | Locomotive signal sensitivity testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323027356.8U CN221100864U (en) | 2023-11-09 | 2023-11-09 | Locomotive signal sensitivity testing device |
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| Publication Number | Publication Date |
|---|---|
| CN221100864U true CN221100864U (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323027356.8U Active CN221100864U (en) | 2023-11-09 | 2023-11-09 | Locomotive signal sensitivity testing device |
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| Country | Link |
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| CN (1) | CN221100864U (en) |
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