Off-line remote control circuit and off-line remote controller

Abstract

The utility model relates to an offline remote control circuit and an offline remote controller, and relates to the technical field of remote controllers. The system comprises a power supply module, a remote module and an over-temperature early warning module, the voltage output end of an incoming line power supply is electrically connected to the remote module and the power supply end of an over-temperature alarm unit through the power supply module, and the output end of the over-temperature alarm unit is in signal connection to the input end of a host; the signal input end of the remote module is in signal connection with the host, the signal output end of the remote module is used for being in off-line remote signal connection with equipment to be tested, and the power module comprises a power switch S1 and an indicator light L1. The method has the effect of reducing the influence of controller overtemperature on equipment testing as much as possible.

Description

Technical Field

[0001] The present application relates to the technical field of remote controllers, and in particular to an offline remote control circuit and an offline remote controller. Background Art

[0002] Equipment needs to be debugged during use. Traditional debugging methods require staff to go to the site, connect their computers to the equipment via network cables, and then transmit signals, which is a cumbersome method. However, most current methods use remote controllers to achieve signal transmission between the device and the host computer through wireless connections.

[0003] However, when the ambient temperature of the device is too high, or when an internal fault in the controller causes the controller temperature to be too high, signal transmission will be affected. Utility Model Content

[0004] In order to minimize the impact of controller overheating on equipment testing, the present application provides an offline remote control circuit and an offline remote controller.

[0005] On the one hand, the present application provides an offline remote control circuit adopting the following technical solutions:

[0006] An offline remote control circuit includes a power module, a remote module and an over-temperature warning module. The voltage output end of the incoming power supply is electrically connected to the remote module and the power supply end of the over-temperature alarm unit through the power module. The output end signal of the over-temperature alarm unit is connected to the input end of the host; the signal input end of the remote module is connected to the host signal, and the signal output end of the remote module is used for offline remote signal connection with the device to be tested. The power module includes a power switch S1 and an indicator light L1.

[0007] By adopting the above technical solution, the output voltage of the incoming power supply can be processed by setting the power supply module to meet the power supply requirements of the remote module and the over-temperature alarm unit, and the switch of the overall controller can be conveniently controlled by the power switch S1, and the current power supply status of the controller is indicated by the on and off of the indicator light L1; the remote module can be used to achieve remote signal connection between the host and the device to be tested, so that the host can transmit the debugging program to the device to be debugged to realize remote debugging; and when the controller overheats, the over-temperature alarm unit can output an over-temperature alarm signal to the host so that the tester can handle it in time.

[0008] Preferably, the over-temperature alarm unit includes a temperature measurement module, a reference module and a comparison module, the temperature measurement module includes a temperature sensor arranged in a remote controller, the output end of the temperature measurement module and the output end of the reference mode are electrically connected to the first input end and the second output end of the comparison module respectively, and the output end of the comparison module is connected to the host signal.

[0009] By adopting the above technical solution, the temperature of the controller during operation can be collected in real time using a temperature sensor. By setting a temperature measurement module, the real-time temperature of the controller can be collected and converted into a first voltage. By setting a reference module, a suitable second voltage can be provided according to the maximum threshold of the device's temperature tolerance. The comparison module is used to compare the first voltage and the second voltage. When the first voltage is higher than the second voltage, the controller is in an over-temperature state, and the comparison module can issue an over-temperature warning signal.

[0010] Preferably, the temperature measurement module also includes an instrument amplifier U2, the output end of the power supply module is grounded through the temperature sensor and the resistor R1, the connection point between the temperature sensor and the resistor R1 is electrically connected to the non-phase input pin 3 of the instrument amplifier U2, and the inverting input pin 2 of the instrument amplifier U2 is grounded; a sliding rheostat W3 is connected in series between pins 1 and 8 of the instrument amplifier U2, and the sliding end of the sliding rheostat W3 is electrically connected to pin 7 of the instrument amplifier U2, and the output pin 6 of the instrument amplifier U2 is set as the output end of the temperature measurement module.

[0011] By adopting the above technical solution, the output voltage of the temperature sensor can be processed by the instrument amplifier U2 and its peripheral circuits so that it can be stably output to the comparison module, and the gain multiple can be adjusted by changing the resistance value of the sliding rheostat W3.

[0012] Preferably, the reference module includes a voltage regulator U3 and an instrument amplifier U4, the output end of the power supply module is electrically connected to the input end V+ of the voltage regulator U3, the ground end GND of the voltage regulator U3 is grounded, and the output end OUT of the voltage regulator U3 is electrically connected to the positive input pin 3 of the instrument amplifier U4, and the negative input pin 2 of the instrument amplifier U4 is grounded; a sliding rheostat W4 is connected in series between pins 1 and 8 of the instrument amplifier U4, and the sliding end of the sliding rheostat W4 is electrically connected to pin 7 of the instrument amplifier U4, and the output pin 6 of the instrument amplifier U4 is set as the output end of the temperature measurement module.

[0013] By adopting the above technical solution, the voltage regulator U3 is set to provide a suitable input voltage, and the instrument amplifier U4 and its peripheral circuits can process the input voltage so that it can be stably output to the comparison module, and the gain multiple can be adjusted by changing the resistance value of the sliding rheostat W4.

[0014] Preferably, the comparison module includes an instrument amplifier U5, the output end of the temperature measurement module is electrically connected to the non-inverting input pin 3 of the instrument amplifier U5, the output end of the reference module is electrically connected to the inverting input pin 2 of the instrument amplifier U5, a sliding rheostat W5 is connected in series between pins 1 and 8 of the instrument amplifier U4, and the sliding end of the sliding rheostat W5 is electrically connected to pin 7 of the instrument amplifier U4, and the output pin 6 of the instrument amplifier U4 is set as the output end of the comparison module.

[0015] By adopting the above technical solution, the instrumentation amplifier U5 and its peripheral circuits act as a comparator, which can compare the output voltage of the reference module with the output voltage of the temperature measurement module. When the output voltage of the temperature measurement module is higher than the output voltage of the reference module, the comparison module outputs an over-temperature alarm signal.

[0016] Preferably, the power supply module includes a transformer, and the output end PE of the incoming power supply is electrically connected to the input end PE of the transformer; the output end L of the incoming power supply is electrically connected to the 1 end of the power switch S1, and the 2 end of the power switch S1 is electrically connected to the input end L of the transformer; the output end N of the incoming power supply is electrically connected to the 3 end of the power switch S1, and the 4 end of the power switch S1 is electrically connected to the input end N of the transformer, and the positive phase output end of the transformer is set as the output end of the power module; the positive pole of the indicator light L1 is electrically connected to the positive phase output end of the transformer, and the negative pole of the indicator light L1 is electrically connected to the negative phase output end of the transformer.

[0017] By adopting the above technical solution, the transformer can convert AC power into DC power. When the power switch S1 is closed, the transformer can provide DC voltage and the indicator light L1 turns on; when the power switch S1 is opened, the transformer cannot work normally and the indicator light L1 turns off.

[0018] On the other hand, the present application provides an offline remote controller that adopts the following technical solutions:

[0019] An offline remote controller includes a cabinet, in which the above-mentioned offline remote control circuit is installed, and the power switch S1 and the indicator light L1 are both arranged on the cabinet; the cabinet is also provided with a signal transmitter and a network port, the network port is connected to the host signal via a network cable, and the signal transmitter is connected to the device to be tested.

[0020] By adopting the above technical solution, during remote debugging, the staff's host is connected to the network port via a network cable, and then the boat-shaped switch is turned on. The indicator light L1 lights up to show that the remote connection is successful. The debugged program can be transmitted to the device to be debugged through the signal transmitter, and remote debugging can be performed without the need for staff to arrive at the site.

[0021] Preferably, the power switch S1, the network port, the indicator light L1 and the signal transmitter are arranged on the same side of the cabinet.

[0022] By adopting the above technical solution, it is convenient for testers to connect the network cable and check the working status of the controller at any time.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. It realizes real-time monitoring of the controller temperature and can promptly issue an over-temperature warning signal when the controller overheats, ensuring the temperature safety of the controller during remote debugging;

[0025] 2. Through the signal connection between the remote module and the host, offline remote testing of the device is realized, improving the convenience and safety of operation;

[0026] 3. The status change of indicator light L1 can intuitively display the current power supply status, making it convenient for operators to judge the working status of the controller in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a principle block diagram of Example 1 of the present application;

[0028] Figure 2 This is a circuit diagram of the power module of Example 1 of the present application;

[0029] Figure 3 This is a circuit diagram of the temperature measurement module in Example 1 of the present application;

[0030] Figure 4 This is the circuit diagram of the reference module of Example 1 of the present application;

[0031] Figure 5 is a circuit diagram of a comparison module in Example 1 of the present application;

[0032] Figure 6 It is a schematic diagram of the overall structure of Example 2 of the present application.

[0033] Figure numerals: 1, cabinet; 2, power switch; 3, indicator light; 4, network port; 5, signal transmitter. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] Example 1:

[0036] Example 1 of the present application discloses an offline remote control circuit.

[0037] Reference Figure 1 , an offline remote control circuit includes a power module and a remote module. The output end of the power module is electrically connected to the power supply end of the remote module and the over-temperature alarm unit, and the power module is used to convert the AC power supply into a suitable working voltage. The signal input end of the remote module is connected to the host signal, and the signal output end of the remote module is used to connect to the offline remote signal of the device to be tested, so that the tester can complete the test of the device through the remote module on the host. The over-temperature alarm unit includes a temperature measurement module, a reference module and a comparison module, and the output end of the temperature measurement module and the output end of the reference mode are electrically connected to the first input end and the second output end of the comparison module respectively. The temperature measurement module is used to collect the real-time temperature of the controller and convert it into a first voltage. The reference module provides a suitable second voltage according to the maximum threshold of the device's temperature tolerance. The comparison module is used to compare the first voltage and the second voltage. When the first voltage is higher than the second voltage, the controller is in an over-temperature state. The comparison module can issue an over-temperature warning signal, thereby prompting relevant staff to shut down the controller as soon as possible for maintenance.

[0038] Reference Figure 2 The power module includes a transformer and a power switch S1. In this embodiment, the incoming power supply is configured as a three-phase AC power supply. The output terminal PE of the incoming power supply is electrically connected to the input terminal PE of the transformer. The output terminal L of the incoming power supply is electrically connected to the 1 terminal of the power switch S1 via a resistor R1, and the 2 terminal of the power switch S1 is electrically connected to the input terminal L of the transformer. The output terminal N of the incoming power supply is electrically connected to the 3 terminal of the power switch S1 via a resistor R2, and the 4 terminal of the power switch S1 is electrically connected to the input terminal N of the transformer. The transformer is used to convert AC voltage into DC voltage. The positive phase output terminal of the transformer is configured as the DC voltage output terminal V1, and in this embodiment, the voltage value of the DC voltage output terminal V1 is set to 24V. The power supply terminal VCC of the remote module is electrically connected to the positive phase output terminal of the transformer, and the power supply terminal GND of the remote module is electrically connected to the negative phase output terminal of the transformer. This enables the remote module to be powered and operate, thereby enabling the host and device to establish a signal connection through the remote module.

[0039] In addition, the power module also includes an indicator light L1, the positive pole of the indicator light L1 is electrically connected to the DC voltage output terminal V1, and the negative pole of the indicator light L1 is electrically connected to the negative phase output terminal of the transformer, for indicating the current power supply status of power on or off.

[0040] refer to Figure 3The temperature measurement module includes a temperature sensor U1 and an instrumentation amplifier U2. The positive-phase DC voltage output terminal V1 is electrically connected to the positive power supply pin 7 of instrumentation amplifier U2, while the negative-phase DC voltage output terminal V1 is electrically connected to the negative power supply pin 4 of instrumentation amplifier U2, thereby powering instrumentation amplifier U2. The DC voltage output terminal V1 is electrically connected to one end of temperature sensor U1, while the other end of temperature sensor U1 is connected to ground via resistor R1. The connection points between temperature sensor U1 and resistor R1, and between resistors R1 themselves, are electrically connected to the positive input pin 3 of instrumentation amplifier U2. The negative input pin 2 of instrumentation amplifier U2 is connected to ground via resistor R2. A sliding rheostat W3 is connected in series between pins 1 and 8 of instrumentation amplifier U2, with the sliding end of the sliding rheostat W3 electrically connected to pin 7 of instrumentation amplifier U2. The gain multiplier can be adjusted by changing the resistance value of the sliding rheostat W3.

[0041] Output pin 6 of instrumentation amplifier U2 is configured as the output terminal of the temperature measurement module and is used to output a first voltage M1. Output pin 6 of instrumentation amplifier U2 is connected to ground via resistors R4, R3, and R2, respectively. Output pin 6 of instrumentation amplifier U2 is also electrically connected to a sliding rheostat W1. The two fixed ends of sliding rheostat W1 are electrically connected to the two ends of resistor R4, respectively, and the sliding end of sliding rheostat W1 is connected to output pin 6 of instrumentation amplifier U2. The output voltage of the temperature measurement module can be adjusted by adjusting the resistance value of sliding resistor W1.

[0042] Reference Figure 3 and Figure 4 The reference module and the temperature measurement module have similar structures, including an instrumentation amplifier U4, a sliding rheostat W2, a sliding rheostat W4, and their peripheral components. The difference is that the reference module also includes a voltage regulator U3, with a DC voltage output terminal V1 electrically connected to the output terminal V+ of the voltage regulator U3, a ground terminal GND of the voltage regulator U3 connected to ground, and an output terminal OUT of the voltage regulator U3 electrically connected to the non-inverting input pin 3 of the instrumentation amplifier U4. Output pin 6 of the instrumentation amplifier U4 is configured as the output terminal of the reference module, for outputting a second voltage M2.

[0043] Reference Figure 4 and Figure 5The comparison module and the reference module have similar structures, including an instrumentation amplifier U5, a sliding rheostat W5, and their peripheral components. The difference is that the output of the temperature measurement module is connected to ground through resistors R8 and R10, respectively, and the connection point between resistors R8 and R10 is electrically connected to the non-inverting input pin 3 of the instrumentation amplifier U5. The output of the reference module is electrically connected to the inverting input pin 2 of the instrumentation amplifier U5 through resistor R9. Output pin 6 of the instrumentation amplifier U5 is electrically connected to the inverting input pin 2 of the instrumentation amplifier U5 through resistor R11, and output pin 6 of the instrumentation amplifier U5 is set as the output of the comparison module.

[0044] When the first voltage M+ is less than the second voltage M-, it means that the temperature of the device is within the appropriate range, and the comparison module outputs a low-level signal; when the first voltage M+ is greater than the second voltage M-, it means that the device is in an over-temperature working state, and the comparison module outputs a high-level over-temperature warning signal.

[0045] The implementation principle of an offline remote control circuit in Example 1 of the present application is as follows: the incoming power is processed by the power module, so that the remote module and the over-temperature warning module can be powered. When remote testing is required, the remote module and the host are first connected via a network cable signal, and then the power switch S1 is turned on to power the remote module and connect it to the device to be debugged, so that the host can transmit the debugged program to the device to be debugged, thereby realizing remote debugging; and the temperature sensor can collect the temperature of the controller in real time during operation. When the controller overheats, the over-temperature alarm unit can output an over-temperature alarm signal to the host so that the tester can handle it in time.

[0046] Example 2:

[0047] Example 2 of the present application discloses an offline remote controller.

[0048] Reference Figure 6 An offline remote control circuit and an offline remote controller include a cabinet 1. The cabinet 1 is generally rectangular in shape, and a power switch 2S1 is provided on the cabinet 1. In this embodiment, the power switch 2S1 is configured as a rocker switch. The cabinet 1 is provided with a network port 4 for connecting a network cable, and a signal transmitter 5 for sending a test signal to the device under test. The user host is connected to the network port 4 via a network cable, thereby enabling a signal connection between the host and the device under test. An indicator light 3L1 is provided on the cabinet 1. By toggling the rocker switch, the switch S1 can be controlled to be in an open or closed state. The indicator light 3L1 indicates the switch of the power module by its own lighting, so that the tester can operate it easily.

[0049] Preferably, the rocker switch, network port 4, indicator light 3L1 and signal transmitter 5 are arranged on the same side of the cabinet 1 close to the user, so that the tester can connect the network cable and check the working status at any time.

[0050] The implementation principle of an offline remote controller in Example 2 of the present application is: during remote debugging, the staff's host is connected to the network port 4 via a network cable, and then the boat-shaped switch is turned on. The indicator light 3L1 lights up to indicate that the remote connection is successful. The debugged program can be transmitted to the device to be debugged through the signal transmitter 5, and remote debugging can be performed without the need for staff to arrive at the site.

[0051] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An offline remote control circuit, characterized in that: It includes a power supply module, a remote module and an over-temperature warning module. The voltage output end of the incoming power supply is electrically connected to the remote module and the power supply end of the over-temperature alarm unit through the power supply module. The output end signal of the over-temperature alarm unit is connected to the input end of the host; the signal input end of the remote module is connected to the host signal, and the signal output end of the remote module is used for offline remote signal connection with the device to be tested. The power supply module includes a power switch S1 and an indicator light L1.

2. The offline remote control circuit according to claim 1, characterized in that: The over-temperature alarm unit includes a temperature measurement module, a reference module and a comparison module. The temperature measurement module includes a temperature sensor arranged in a remote controller. The output end of the temperature measurement module and the output end of the reference module are electrically connected to the first input end and the second output end of the comparison module respectively. The output end of the comparison module is connected to the host signal.

3. The offline remote control circuit according to claim 2, characterized in that: The temperature measurement module also includes an instrument amplifier U2. The output end of the power supply module is grounded through the temperature sensor and the resistor R1. The connection point between the temperature sensor and the resistor R1 is electrically connected to the non-inverting input pin 3 of the instrument amplifier U2. The inverting input pin 2 of the instrument amplifier U2 is grounded. A sliding rheostat W3 is connected in series between pins 1 and 8 of the instrument amplifier U2, and the sliding end of the sliding rheostat W3 is electrically connected to pin 7 of the instrument amplifier U2. The output pin 6 of the instrument amplifier U2 is set as the output end of the temperature measurement module.

4. The offline remote control circuit according to claim 2, characterized in that: The reference module includes a voltage regulator U3 and an instrument amplifier U4. The output end of the power supply module is electrically connected to the input end V+ of the voltage regulator U3, the ground end GND of the voltage regulator U3 is grounded, and the output end OUT of the voltage regulator U3 is electrically connected to the positive input pin 3 of the instrument amplifier U4, and the negative input pin 2 of the instrument amplifier U4 is grounded; a sliding rheostat W4 is connected in series between pins 1 and 8 of the instrument amplifier U4, and the sliding end of the sliding rheostat W4 is electrically connected to pin 7 of the instrument amplifier U4. The output pin 6 of the instrument amplifier U4 is set as the output end of the temperature measurement module.

5. The offline remote control circuit according to claim 2, characterized in that: The comparison module includes an instrument amplifier U5, the output end of the temperature measurement module is electrically connected to the non-inverting input pin 3 of the instrument amplifier U5, the output end of the reference module is electrically connected to the inverting input pin 2 of the instrument amplifier U5, a sliding rheostat W5 is connected in series between pins 1 and 8 of the instrument amplifier U4, and the sliding end of the sliding rheostat W5 is electrically connected to pin 7 of the instrument amplifier U4, and the output pin 6 of the instrument amplifier U4 is set as the output end of the comparison module.

6. The offline remote control circuit according to claim 1, characterized in that: The power supply module includes a transformer, and the output end PE of the incoming power supply is electrically connected to the input end PE of the transformer; the output end L of the incoming power supply is electrically connected to the 1 end of the power switch S1, and the 2 end of the power switch S1 is electrically connected to the input end L of the transformer; the output end N of the incoming power supply is electrically connected to the 3 end of the power switch S1, and the 4 end of the power switch S1 is electrically connected to the input end N of the transformer, and the positive phase output end of the transformer is set as the output end of the power module; the positive pole of the indicator light L1 is electrically connected to the positive phase output end of the transformer, and the negative pole of the indicator light L1 is electrically connected to the negative phase output end of the transformer.

7. An offline remote controller, characterized in that: The invention comprises a cabinet (1), wherein an offline remote control circuit according to any one of claims 1 to 6 is installed in the cabinet (1), wherein the power switch (2) S1 and the indicator light (3) L1 are both arranged on the cabinet (1); and the cabinet (1) is further provided with a signal transmitter (5) and a network port (4), wherein the network port (4) is connected to the host signal via a network cable, and the signal transmitter (5) is connected to the device to be tested signal.

8. An offline remote controller according to claim 7, characterized in that: The power switch (2) S1, the network port (4), the indicator light (3) L1 and the signal transmitter (5) are arranged on the same side of the cabinet (1).

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