Long-range multi-type timing system signal control system and method

Abstract

The invention discloses a long-range multi-type timing signal control system and method, and solves the technical problems that existing timing signal control equipment is difficult to control multiple paths of timing signals with different requirements at the same time, the control process of active signals and passive signals is tedious, and the timing signals are easy to interrupt due to overlong power supply time. The control system comprises a signal receiving unit and a timing signal generator. The signal receiving unit is connected with an engine high-altitude simulation test control system, receives a trigger signal sent by the control system and converts the trigger signal into a corresponding control signal; the timing signal generator comprises a PCB (Printed Circuit Board) and a plurality of timing signal generating units mounted on the PCB; each timing signal generation unit comprises an active signal generator and a passive signal generator; the signal receiving unit is respectively connected with the input ends of each active signal generator and each passive signal generator, and the output ends of the active signal generators and the passive signal generators are connected with the corresponding measuring equipment.

Description

Technical Field

[0001] This invention relates to timing signal control equipment, specifically to a long-range multi-type timing signal control system and method. Background Technology

[0002] In engine high-altitude simulation tests, the timing signal control equipment is used to send timing signals to external test equipment at the same time as engine ignition. This timing signal serves as a time synchronization recording signal, which is beneficial for accurate analysis of test data after the test, thereby improving the effectiveness of engine high-altitude simulation tests.

[0003] Existing timing signal control equipment connects relays between the engine high-altitude simulation test control system and external test equipment. However, with the increase in test tasks and the growing complexity of tests, the number of measuring devices involved in the tests has also increased. Existing timing control equipment struggles to simultaneously control multiple timing signals with different requirements, and the outputs of active and passive signals need to be switched back and forth, making the timing signal control process cumbersome and ultimately affecting the test progress.

[0004] Furthermore, existing timing signal control equipment uses a relay-based control method that connects when powered on and disconnects when powered off. To meet experimental requirements, the timing control channel needs continuous power supply for 4000-5000 seconds. During this period, if a short circuit or open circuit occurs in the control circuit, the timing signal on that channel will be interrupted, severely impacting the experimental results. Additionally, excessively long power supply times can cause the control circuit to overheat, affecting its operational stability and lifespan. Summary of the Invention

[0005] The purpose of this invention is to solve the technical problems of existing timing signal control equipment, such as difficulty in controlling multiple timing signals with different requirements at the same time, cumbersome control process of active and passive signals, and easy interruption of timing signals due to excessive power supply time. In order to provide a long-range multi-type timing signal control system and method, this invention provides a long-range multi-type timing signal control system and method.

[0006] To achieve the above objectives, the technical solution provided by this invention is as follows: A long-range, multi-type time synchronization signal control system is used in conjunction with an engine high-altitude simulation test control system; its special feature is that it includes a signal receiving unit and a time synchronization signal generator. The signal receiving unit is used to connect to the engine high-altitude simulation test control system, receive the trigger signal issued by the control system and convert it into a corresponding control signal; The timing signal generator includes a PCB board and multiple timing signal generation units mounted on the PCB board; each timing signal generation unit includes an active signal generator and a passive signal generator. The signal receiving unit is connected to the input terminal of each active signal generator and passive signal generator, respectively, and is used to transmit the corresponding control signal to the active signal generator or passive signal generator; the output terminal of the active signal generator and passive signal generator is used to connect to the corresponding measuring device, wherein the active signal generator is used to emit the corresponding active timing signal, and the passive signal generator is used to emit the passive timing signal.

[0007] Furthermore, the active signal generator includes a power supply module, a power module, and at least one first relay, and when there are two or more first relays, the structure is arranged in parallel. The power supply module is connected to the input terminal of the power module and is used to supply power to the power module; Each of the first relays has an input terminal with an on port, an off port, a bias port, and a common port connected to the signal receiving unit. The on port and the common port together with the signal receiving unit form a first control circuit for controlling the first relay to open; the off port and the common port together with the signal receiving unit form a second control circuit for controlling the first relay to close; and the bias port and the common port together with the signal receiving unit form a third control circuit for controlling the first relay to emit a corresponding active timing signal. The first relay has an output terminal with port A and port B. Port A is used to connect to the high signal terminal of the corresponding measuring device and output the corresponding active timing signal. The power module has an output terminal with a port C connected to the positive output terminal and a port D connected to the negative output terminal. Port C is connected to port B of the first relay output terminal. Port D is used to connect to the low signal terminal of the corresponding measuring device, and a first indicator light is connected between port D and port A.

[0008] Furthermore, a first capacitor and a second capacitor are installed between the C port and D port of the power module output terminal. The first capacitor and the second capacitor are connected in parallel to process the ripple interference generated by the power module; the capacitance value of the second capacitor is twice that of the first capacitor.

[0009] Furthermore, the power supply is a 24V DC power supply; The power module is CC6-2405SF-E, with an output voltage of 5V, an output ripple of ≤40mV, and an output power of 6W. The capacitance of the first capacitor is 1μF, and the capacitance of the second capacitor is 2μF.

[0010] Furthermore, the signal receiving unit is provided with a first resistor R1 on the connection line to the first relay turn-on port, a second resistor R2 on the connection line to the turn-off port, and a third resistor R3 on the connection line to the bias port. A fourth resistor R4 is provided on the connection line between the first relay A port and the corresponding first indicator light.

[0011] Furthermore, the passive signal generator includes at least one second relay, and when there are two or more second relays, their structure is arranged in parallel; Each of the second relays has the same structure as the first relay; the on port and common port of the input terminal of the second relay, together with the signal receiving unit, form a fourth control circuit for controlling the opening of the second relay; the off port and common port, together with the signal receiving unit, form a fifth control circuit for controlling the closing of the second relay; the bias port and common port, together with the signal receiving unit and the external control power supply, form a sixth control circuit, which is controlled by the signal receiving unit to output a passive timing signal from the second relay; the A port and B port of the output terminal of the third relay are respectively used to connect to the two signal input terminals of the corresponding measuring equipment and output a passive timing signal; a second indicator light is connected between the on port and the common port.

[0012] Furthermore, a fifth resistor R5 is provided on the connection line between the signal receiving unit and the second relay turn-on port, and a sixth resistor R6 is provided on the connection line between the signal receiving unit and the turn-off port; a seventh resistor R7 is provided on the connection line between the second relay A port and the corresponding measuring device.

[0013] Furthermore, both the first and second relays are selected as control relays with sealed integration using the JGC-5528M.

[0014] Furthermore, this invention also provides a long-range multi-type time synchronization signal control method, which is characterized by including the following steps: Step 1: Determine the number of timing signal generation units based on the number of measuring devices and testing requirements, and assemble the above-mentioned long-range multi-type timing signal control system. Step 2: According to the requirements of the engine high-altitude simulation test, at the start of the test program, the engine high-altitude simulation test control system sends a trigger signal to the signal receiving unit. The signal receiving unit then converts the trigger signal into a corresponding control signal and sends a corresponding control command to each timing signal generating unit. Step 3: The timing signal generation unit sends the corresponding active or passive timing signal to the corresponding measuring device according to the control command, thereby realizing the control of long-range multi-type timing signals.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The long-range multi-type time synchronization signal control system provided by the present invention includes a signal receiving unit and a time synchronization signal generator. The time synchronization signal generator includes a PCB board and multiple time synchronization signal generating units mounted on the PCB board. Each time synchronization signal generating unit includes an active signal generator and a passive signal generator, which are respectively connected to the corresponding measuring equipment. This enables the signal receiving unit to synchronously control the multiple active and passive signal generators, thereby outputting a corresponding and stable time synchronization signal to the corresponding measuring equipment.

[0016] 2. This invention allows for independent control of the active signal generator and the passive signal generator via the signal receiving unit. The operation is simple and quick, avoiding the impact on the test progress caused by switching back and forth between a single output path.

[0017] 3. The arrangement of the first and second capacitors in this invention can promptly handle the ripple interference generated by the power module, thereby improving the output accuracy of the active timing signal.

[0018] 4. The first indicator light and the second indicator light of the present invention can monitor in real time whether the corresponding timing signal is being issued normally.

[0019] 5. The first and second relays of the present invention are both selected from the JGC-5528M sealed integrated control relays, whose energizing method can effectively improve the stability of the synchronization signal during long-distance testing.

[0020] 6. The present invention can select multiple first relays and / or multiple second relays connected in parallel according to measurement requirements, thereby achieving redundancy backup and improving the reliability of the control system. Attached Figure Description

[0021] Figure 1 This is a schematic diagram illustrating the usage structure of an embodiment of the long-range multi-type time-synchronization signal control system of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the active signal generator in an embodiment of the long-range multi-type time-synchronous signal control system of the present invention.

[0023] Figure 3 This is a schematic diagram of the passive signal generator in an embodiment of the long-range multi-type time-synchronous signal control system of the present invention. Detailed Implementation

[0024] To make the objectives, advantages, and features of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0025] like Figure 1 As shown, this embodiment provides a long-range multi-type time synchronization signal control system for use in conjunction with an engine high-altitude simulation test control system. The control system includes a signal receiving unit and a time synchronization signal generator.

[0026] The signal receiving unit is used to connect to the engine high-altitude simulation test control system, receive the trigger signal sent by the control system and convert it into the corresponding control signal, and then control the timing signal generator to send the corresponding timing signal.

[0027] The timing signal generator in this embodiment includes a PCB board and multiple timing signal generation units mounted on the PCB board. Each timing signal generation unit includes an active signal generator and a passive signal generator. A signal receiving unit is connected to the input terminal of each active and passive signal generator, respectively, to transmit the corresponding control signal to the active or passive signal generator. The output terminals of the active and passive signal generators are used to connect to corresponding measuring devices. The active signal generator is used to emit the corresponding active timing signal, and the passive signal generator is used to emit the passive timing signal.

[0028] Based on the statistical results of the timing signal requirements of various measuring devices, it was found that each participating measuring device requires both a 5V signal and a passive signal. Therefore, suitable timing signals need to be provided to the participating measuring devices according to different test requirements. When connecting this invention to the measuring devices, the connector plug between the active signal generator and the measuring device is Y4P-4TK, and the connector plug between the active signal generator and the signal receiving unit is also Y4P-4TK. When the signal receiving unit receives a command from the engine high-altitude simulation test control system and sends a signal to the active signal generator, the active signal generator converts the signal into a 5V active timing signal and sends it to the corresponding measuring device.

[0029] The remaining measuring equipment, including vibration, temperature, and pressure measuring devices and monitoring equipment, requires the engine test bench control system to provide each with a passive timing signal. The connector plug for the cable connection between these measuring devices and the passive signal generator is Y4P-4TK2, and the connector plug between the passive signal generator and the signal receiving unit is Y4P-4TK. When the signal receiving unit receives a command from the engine high-altitude simulation test control system to send a signal to the passive signal generator, the passive signal generator directly sends the passive signal to the corresponding measuring device.

[0030] In addition, the long-range multi-type time signal control system of this embodiment can be integrated into a chassis made of aluminum alloy plate to realize the integration and installation of the control system. At the same time, the input channels are integrated to avoid repeated plugging and unplugging of input connectors and to prevent incorrect plugging of input and output connectors.

[0031] like Figure 2 As shown, the active signal generator includes a power supply module, a power module, and at least one first relay. When there are two or more first relays, the structure is arranged in parallel.

[0032] The power supply module uses a 24V DC power supply, which is connected to the input terminal of the power module to supply power. The power module is CC6-2405SF-E, with an output voltage of 5V, output ripple ≤40mV, and output power of 6W. When the timing signal is valid, the ST+ level is +5V±0.5V.

[0033] Each first relay has an input terminal with an on port, an off port, a bias port, and a common port connected to the signal receiving unit. The on port and common port, together with the signal receiving unit, form a first control circuit that outputs a pulse current of approximately 3ms to control the opening of the first relay. The off port and common port, together with the signal receiving unit, form a second control circuit that outputs a pulse current of approximately 3ms to control the closing of the first relay. The bias port and common port, together with the signal receiving unit, form a third control circuit to control the first relay to emit a corresponding active timing signal. This relay energizing method effectively improves the stability of the synchronization signal during long-distance testing.

[0034] The first relay has two output terminals: port A and port B. Port A is used to connect to the high-side signal terminal of the corresponding measuring device and outputs the corresponding active timing signal. The power module has two output terminals: port C, connected to the positive terminal, and port D, connected to the negative terminal. Port C is connected to port B of the first relay output terminal. Port D is used to connect to the low-side signal terminal of the corresponding measuring device, and a first indicator light is connected between port D and port A. The first indicator light is a circular indicator light with a size of Φ6 and a voltage control range of 5V. It is located at the output terminal of the active signal generator to provide feedback on whether the signal generation is normal.

[0035] A first capacitor C1 and a second capacitor C2 are installed between the C and D ports of the power module output. These capacitors are connected in parallel to process the ripple interference generated by the power module. Simultaneously, filtering can be applied at the positive terminal of the power module to reduce circuit interference and improve signal output accuracy. Generally, the capacitance of the second capacitor C2 is twice that of the first capacitor C1. In this embodiment, the capacitance of the first capacitor C1 is 1μF, and the capacitance of the second capacitor C2 is 2μF.

[0036] Preferably, in this embodiment, a first resistor R1 is provided on the connection line between the signal receiving unit and the first relay turn-on port, a second resistor R2 is provided on the connection line between the signal receiving unit and the turn-off port, and a third resistor R3 is provided on the connection line between the signal receiving unit and the bias port; a fourth resistor R4 is provided on the connection line between the first relay A port and the corresponding first indicator light, so as to ensure the normal output of each signal.

[0037] like Figure 3 As shown, the passive signal generator includes at least one second relay. Similarly, when there are two or more second relays, the structure is configured in parallel.

[0038] Each second relay has the same structure as the first relay. The on port and common port of the second relay's input terminal, together with the signal receiving unit, form a fourth control circuit, outputting a pulse current of approximately 3ms to control the second relay's opening. The off port, common port, and signal receiving unit form a fifth control circuit, outputting a pulse current of approximately 3ms to control the second relay's closing. The bias port, common port, and signal receiving unit form a sixth control circuit, which controls the second relay to emit a passive timing signal. A second indicator light, a Φ6 circular indicator light with a voltage control range of 24V, is also connected between the on port and common port. This indicator light is located at the input terminal of the passive signal generator to provide feedback on whether the input signal is normal. The A and B ports of the third relay's output terminal are respectively used to connect to the two signal input terminals of the corresponding measuring equipment and output a passive timing signal.

[0039] Preferably, a fifth resistor R5 is provided on the connection line between the signal receiving unit and the second relay turn-on port, and a sixth resistor R6 is provided on the connection line between the signal receiving unit and the turn-off port; a seventh resistor R7 is provided on the connection line between the second relay A port and the corresponding measuring device, to ensure the normal output of each signal.

[0040] In this embodiment, both the first and second relays are selected as control relays with sealed integration using JGC-5528M (036-60-02).

[0041] This embodiment also provides a long-range multi-type timing signal control method, including the following steps: Step 1: Determine the number of timing signal generation units based on the number of measuring devices and testing requirements, and assemble a long-range multi-type timing signal control system.

[0042] Step 2: According to the requirements of the engine high-altitude simulation test, at the start of the test program, the engine high-altitude simulation test control system sends a trigger signal to the signal receiving unit. The signal receiving unit then converts the trigger signal into a corresponding control signal and sends a corresponding control command to each timing signal generating unit.

[0043] Step 3: The timing signal generation unit sends the corresponding active or passive timing signal to the corresponding measuring device according to the control command, thereby realizing the control of long-range multi-type timing signals.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein, and such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present invention.

Claims

1. A long-range multi-type time system signal control system, used in cooperation with an engine high-altitude simulation test control system; characterized in that: it comprises a signal receiving unit and a time system signal generator; the signal receiving unit is used to connect the engine high-altitude simulation test control system, receive the trigger signal sent by the control system and convert it into a corresponding control signal; the time system signal generator comprises a PCB board and a plurality of time system signal generating units mounted on the PCB board; each time system signal generating unit comprises an active signal generator and a passive signal generator; the signal receiving unit is connected with the input end of each active signal generator and passive signal generator, used to transmit the corresponding control signal to the active signal generator or passive signal generator; the output end of the active signal generator and passive signal generator is used to connect the corresponding measuring device, wherein the active signal generator is used to send a corresponding active time system signal, and the passive signal generator is used to send a passive time system signal.

2. The long-range multi-type time system signal control system according to claim 1, characterized in that: the active signal generator comprises a power supply module, a power module and at least one first relay, and when there are two or more first relays, they are arranged in parallel; the input end of the power supply module is connected with the power module, used to supply power for the power module; the input end of each first relay is respectively provided with an on port, an off port, a bias port and a common port connected with the signal receiving unit, wherein the on port and the common port form a first control circuit with the signal receiving unit, used to control the opening of the first relay; the off port and the common port form a second control circuit with the signal receiving unit, used to control the closing of the first relay; the bias port and the common port form a third control circuit with the signal receiving unit, used to control the first relay to send a corresponding active time system signal; the output end of the first relay is provided with an A port and a B port, wherein the A port is used to connect the signal high end of the corresponding measuring device and output the corresponding active time system signal; the output end of the power module is provided with a C port connected with the output positive pole and a D port connected with the output negative pole, wherein the C port is connected with the B port of the output end of the first relay; the D port is used to connect the signal low end of the corresponding measuring device, and a first indicator lamp is connected between the D port and the A port.

3. The long-range multi-type time system signal control system according to claim 2, characterized in that: a first capacitor and a second capacitor are mounted between the C port and the D port of the output end of the power module, and the first capacitor and the second capacitor are arranged in parallel, used to process the ripple interference generated by the power module; the capacitance value of the second capacitor is 2 times that of the first capacitor.

4. The long-range multi-type time system signal control system according to claim 3, characterized in that: the power supply is a 24V input DC power supply; the power module is a CC6-2405SF-E, with an output voltage of 5V, an output ripple of ≤40mV and an output power of 6W; the capacitance value of the first capacitor is 1μF, and the capacitance value of the second capacitor is 2μF. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 5. The long-range multi-type time base signal control system according to claim 4, wherein: the signal receiving unit is provided with a first resistor R1 on the connection line of the first relay's on port, a second resistor R2 on the connection line of the off port, and a third resistor R3 on the connection line of the bias port; and the first relay's A port is provided with a fourth resistor R4 on the connection line of the corresponding first indicator lamp.

6. The long-range multi-type time base signal control system according to claim 2, wherein: the passive signal generator comprises at least one second relay, and when the second relay is more than two, the structure is in parallel; each of the second relay is the same as the first relay; the on port, the common port of the second relay's input end form a fourth control circuit with the signal receiving unit, for controlling the opening of the second relay; the off port, the common port form a fifth control circuit with the signal receiving unit, for controlling the closing of the second relay; the bias port, the common port form a sixth control circuit with the signal receiving unit and the external control power supply, for controlling the second relay to send passive time base signal; the A port and the B port of the third relay's output end are respectively used for connecting two signal input ends of the corresponding measuring device, and outputting passive time base signal; and the on port is connected with the common port and the second indicator lamp.

7. The long-range multi-type time base signal control system according to claim 6, wherein: the signal receiving unit is provided with a fifth resistor R5 on the connection line of the second relay's on port, and a sixth resistor R6 on the connection line of the off port; and the A port of the second relay is provided with a seventh resistor R7 on the connection line of the corresponding measuring device.

8. The long-range multi-type time base signal control system according to claim 7, wherein: the first relay and the second relay are selected from the control relay sealed and integrated by JGC-5528M. comprising the following steps: Step 1: according to the number of measuring devices and test requirements, determining the number of time base signal generating units, and assembling the long-range multi-type time base signal control system according to any one of claims 1 to 8; Step 2: according to the engine altitude simulation test requirements, sending a trigger signal to the signal receiving unit at the starting moment of the test program through the engine altitude simulation test control system, and sending corresponding control instructions to each time base signal generating unit after the signal receiving unit converts the trigger signal into corresponding control signal; Step 3: the time base signal generating unit sends corresponding active time base signal or passive time base signal to the corresponding measuring device according to the control instructions, so as to realize the control of long-range multi-type time base signal. ​ ​ 9. A long-range multi-type chronology signal control method, characterized by, ​ ​ ​ ​

Images