CN219589729U - Voltage current temperature monitoring circuit and device - Google Patents
Voltage current temperature monitoring circuit and device Download PDFInfo
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- CN219589729U CN219589729U CN202321230127.3U CN202321230127U CN219589729U CN 219589729 U CN219589729 U CN 219589729U CN 202321230127 U CN202321230127 U CN 202321230127U CN 219589729 U CN219589729 U CN 219589729U
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Abstract
The utility model provides a voltage, current and temperature monitoring circuit and a device, and relates to the technical field of electronic equipment monitoring, wherein the circuit comprises a power supply module, a control module and a data acquisition module; the first output end of the power supply module is respectively connected with the power supply input ends of the data acquisition module and the control module; the second output end of the power supply module is connected with the signal input end of the data acquisition module, and the output end of the control module is connected with the signal input end of the data acquisition module; the first data acquisition end of the data acquisition module is respectively connected with a plurality of devices to be monitored, and is used for supplying power to the devices to be monitored and acquiring the voltage and current of the devices to be monitored; the second data acquisition end of the data acquisition module is connected with a temperature acquisition panel, and the temperature acquisition panel is used for acquiring the temperature of equipment to be monitored. The voltage and current temperature monitoring circuit provided by the utility model has a simple structure, effectively improves the monitoring efficiency, and has stronger universality, reliability and flexibility.
Description
Technical Field
The present utility model relates to the field of electronic device monitoring technologies, and in particular, to a voltage, current and temperature monitoring circuit and device.
Background
In the research, development and testing stage of electronic equipment such as a laser radar, parameters such as current, voltage, temperature and the like of the equipment to be tested are generally required to be monitored, and then the running condition or running state of the whole equipment to be tested is judged based on the obtained parameter data.
The existing equipment for monitoring voltage, current and temperature data usually adopts a special digital power supply, so that the universality is poor, and the function is single, so that different instruments are required to be applied to data acquisition of different parameters, and the flexibility is poor.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a voltage current temperature monitoring circuit and a device, which solve the technical problems of poor universality, single function and poor flexibility caused by the need of adopting a special power supply when monitoring electronic equipment in the prior art.
In one aspect, the present utility model provides a voltage-current-temperature monitoring circuit, comprising: the device comprises a power supply module, a control module and a data acquisition module;
the first output end of the power supply module is connected with the power supply input end of the data acquisition module, and the first output end of the power supply module is also connected with the power supply input end of the control module;
the second output end of the power supply module is connected with the signal input end of the data acquisition module, and the output end of the control module is connected with the signal input end of the data acquisition module;
the first data acquisition end of the data acquisition module is respectively connected with a plurality of devices to be monitored, and is used for supplying power to the devices to be monitored and acquiring the voltage and the current of the devices to be monitored;
the second data acquisition end of the data acquisition module is connected with a temperature acquisition panel, and the temperature acquisition panel is used for acquiring the temperature of the equipment to be monitored.
Optionally, the power module comprises an alternating current input unit, a switching power supply unit and a power conversion unit;
the output end of the alternating current input unit is connected with the power input end of the data acquisition module, and the output end of the alternating current input unit is also connected with the input end of the switching power supply unit;
the output end of the switching power supply unit is connected with the power input end of the control module, the output end of the switching power supply unit is also connected with the input end of the power conversion unit, and the output end of the power conversion unit is connected with the signal input end of the data acquisition module.
Optionally, the power supply conversion unit comprises a double-pole double-throw switch and an external power supply;
the first input contact and the second input contact of the double-pole double-throw switch are connected with the grounding end;
the third input contact of the double-pole double-throw switch is connected with the output end of the switching power supply unit;
the fourth input contact of the double-pole double-throw switch is connected with the external power supply;
the first output contact of the double-pole double-throw switch is connected with the output end of the switching power supply unit;
and a second output contact of the double-pole double-throw switch is connected with a signal input end of the data acquisition module.
Optionally, the power conversion unit further comprises a first indicator light and a second indicator light;
the first indicator lamp is connected between a first input contact of the double-pole double-throw switch and a grounding end;
the second indicator light is connected between a second input contact of the double pole double throw switch and the ground terminal.
Optionally, the input end of the alternating current input unit is connected with 220V alternating current; the switching power supply unit is a direct-current 12V switching power supply and is used for converting 220V alternating current into 12V direct current; the external power supply is an adjustable power supply with 0-36V.
Optionally, the control module includes a PLC and a plurality of relays;
the power input port of the PLC is connected with the first output end of the power module, and the grounding port of the PLC is connected with the grounding end;
the output port of the PLC comprises a plurality of output pins, one end of a coil of each relay is connected with the output pins through a control switch, and the other end of the coil of each relay is connected with a grounding end;
the output contact of the relay is connected with the signal input end of the data acquisition module, the normally closed contact of the relay is connected with the second output end of the power module, and the normally open contact of the relay is disconnected.
Optionally, a resistance wire is connected between the normally closed contact of the relay and the second output end of the power module.
Optionally, the data acquisition module comprises a data acquisition chip;
the data acquisition chip is provided with a signal input port, a first data acquisition port and a second data acquisition port;
the signal input port is respectively connected with the second output end of the power supply module and the output end of the control module;
the signal input port and the first data acquisition port are correspondingly provided with pins with the same number, and each pin in the first data acquisition port is respectively connected with one device to be monitored;
the second data acquisition port is connected with the temperature acquisition panel, and the temperature acquisition panel is close to equipment to be monitored.
Optionally, the data acquisition chip is further provided with a reserved acquisition port.
In another aspect, the utility model provides a voltage-current-temperature monitoring device comprising a voltage-current-temperature monitoring circuit as described above.
According to the voltage and current temperature monitoring circuit and device provided by the utility model, the power supply module is utilized to supply power to other functional modules in the circuit, a special digital power supply is not required to be connected, the circuit and the device are not limited by a monitoring environment, the structure is simple, and a complex testing environment is not required to be built; the voltage, the current and the temperature of the equipment to be monitored can be simultaneously collected by using one data collection module, and the monitoring tools are not required to be switched according to different monitoring projects, so that the monitoring equipment has strong universality and reliability; the data acquisition module can be connected with a plurality of devices to be monitored simultaneously, so that the monitoring efficiency is improved; the control module is arranged, the equipment to be monitored can be selected, various parameters in the monitoring process can be adjusted, and the control process is simple, efficient and flexible.
The technical scheme of the utility model is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of an embodiment of a voltage-current-temperature monitoring circuit according to the present utility model;
FIG. 2 is a schematic diagram illustrating an embodiment of a voltage-current-temperature monitoring circuit according to the present utility model;
fig. 3 is a circuit diagram of an embodiment of a voltage-current-temperature monitoring circuit provided by the present utility model.
In the figure:
SW1, double pole double throw switch; SW2, double pole single throw switch; 220V_AC, input end of the switching power supply unit; 12V_OUT, the output end of the switching power supply unit; 12V_POWER, switching power supply; 0-36V_IN, an adjustable power supply; LED1, first indicator lamp; LED2, second indicator light; r, resistance; F1-F4, resistance wire; S1-S4, a control switch; CH1-CH4, equipment to be monitored; K1-K4, relays; PLC_POWER, POWER input port of PLC; plc_out, output port of PLC.
Detailed Description
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In one aspect, the utility model provides a voltage and current temperature monitoring circuit, as shown in fig. 1, which comprises a power module, a control module and a data acquisition module, wherein a first output end of the power module is connected with a power input end of the data acquisition module, a first output end of the power module is also connected with a power input end of the control module, a second output end of the power module is connected with a signal input end of the data acquisition module, an output end of the control module is connected with a signal input end of the data acquisition module, a first data acquisition end of the data acquisition module is respectively connected with a plurality of devices to be monitored and is used for supplying power to the devices to be monitored and acquiring voltage and current of the devices to be monitored, and a second data acquisition end of the data acquisition module is connected with a temperature acquisition panel which is used for acquiring temperature of the devices to be monitored.
The voltage and current temperature monitoring circuit provided by the utility model utilizes the power supply module to supply power to other functional modules in the circuit, does not need to be connected with a special digital power supply, is not limited by a monitoring environment, has a simple structure, and does not need to build a complex testing environment; the voltage, the current and the temperature of the equipment to be monitored can be simultaneously collected by using one data collection module, and the monitoring tools are not required to be switched according to different monitoring projects, so that the monitoring equipment has strong universality and reliability; the data acquisition module can be connected with a plurality of devices to be monitored simultaneously, so that the monitoring efficiency is improved; the control module is arranged, the equipment to be monitored can be selected, various parameters in the monitoring process can be adjusted, and the control process is simple, efficient and flexible.
Specifically, in the above embodiment, as shown in fig. 2, the power module includes an ac input unit, a switching power supply unit, and a power conversion unit, where an output end of the ac input unit is connected to a power input end of the data acquisition module, an output end of the ac input unit is further connected to an input end of the switching power supply unit, an output end of the switching power supply unit is connected to a power input end of the control module, an output end of the switching power supply unit is further connected to an input end of the power conversion unit, and an output end of the power conversion unit is connected to a signal input end of the data acquisition module.
In this embodiment, the power supply module is specifically divided into three parts, i.e., an ac input unit, a switching power supply unit, and a power supply conversion unit. Specifically, as shown in fig. 3, the ac input unit uses a three-wire plug to access external ac power, without a special digital power supply, the three-wire plug includes a live wire, a neutral wire and a ground wire, the ground wire is connected with a ground terminal, a protection resistance wire F5 is connected to the live wire for protecting a circuit, and a single-pole double-throw switch SW2 is arranged on the live wire and the neutral wire for controlling the access of the power supply, the live wire and the neutral wire are connected to the power input end of the data acquisition module in one of the branches for supplying power to the data acquisition module, and the live wire and the neutral wire are connected to the input end 220v_ac of the switching power supply unit in the other branch. In the utility model, the switching power supply unit specifically comprises a switching power supply, which is a high-frequency electric energy conversion device, and can convert alternating current input by the alternating current input unit into a required direct current power supply, and output the direct current to the power supply conversion unit for use. The power supply conversion unit not only can directly output direct current output by the switching power supply to the data acquisition module, but also can select power supplies with other powers to be connected based on the connection of the monitoring demand control circuit, so that the switching power supply has strong compatibility.
Further, as shown in fig. 3, the power conversion unit includes a double-pole double-throw switch SW1 and an external power source, the first input contact and the second input contact of the double-pole double-throw switch SW1 are both connected with the ground terminal, the third input contact of the double-pole double-throw switch SW1 is connected with the output terminal of the switch power source unit, the fourth input contact of the double-pole double-throw switch SW1 is connected with the external power source, the first output contact of the double-pole double-throw switch SW1 is connected with the output terminal of the switch power source unit, and the second output contact of the double-pole double-throw switch SW1 is connected with the signal input terminal of the data acquisition module.
In this embodiment, the power conversion unit is specifically configured by a double-pole double-throw switch SW1 and an external power supply, where the double-pole double-throw switch SW1 is a common electromechanical switch, and specifically includes two input contacts and four output contacts, and when a first output contact of the double-pole double-throw switch SW1 is connected to the first input contact, a second output contact of the double-pole double-throw switch SW1 is connected to a third input contact, and at this time, the power conversion unit transmits the received direct current output by the switch power supply unit to a signal input end of the data acquisition module; when the first output contact of the double-pole double-throw switch SW1 is connected with the second input contact, the second output contact of the double-pole double-throw switch SW1 is connected with the fourth input contact, and then the power supply conversion unit is connected with an external power supply connected with the fourth input contact, and transmits direct current output by the external power supply to the signal input end of the data acquisition module. The double-pole double-throw switch SW1 and the external power supply are arranged, so that the signal input end of the data acquisition module can be connected with direct current with fixed power output by the switching power supply unit under the conventional state based on the monitoring requirement of a user, or the external power supply with adjustable power can be connected according to the requirement, and the device has strong flexibility.
Further, the power conversion unit further comprises a first indicator light LED1 and a second indicator light LED2, wherein the first indicator light LED1 is connected between the first input contact of the double-pole double-throw switch SW1 and the ground terminal, and the second indicator light LED2 is connected between the second input contact of the double-pole double-throw switch SW1 and the ground terminal.
In this embodiment, two indicator lamps are disposed in the power conversion unit, and the two indicator lamps are respectively connected with the first input contact and the second input contact of the double-pole double-throw switch SW1, and are used for indicating the connection states of the first input contact and the second input contact of the double-pole double-throw switch SW1, so as to facilitate understanding of the power supply connected to the data acquisition module. Specifically, when the first input contact of the double-pole double-throw switch SW1 is conducted with the first output contact, and the third input contact is conducted with the second output contact, after one path of current output by the switch power supply unit passes through the first output contact and the first input contact of the double-pole double-throw switch SW1, the first indicator light LED1 is turned on, the representative power supply conversion unit is connected to the switch power supply unit, and after the other path of current output by the switch power supply unit passes through the third input contact and the second output contact of the double-pole double-throw switch SW1, the other path of current is connected to the signal input end of the data acquisition module; when the second input contact of the double-pole double-throw switch SW1 is conducted with the first output contact and the fourth input contact of the double-pole double-throw switch SW1 is conducted with the second output contact, one path of current output by the switch power supply unit passes through the first output contact and the second input contact of the double-pole double-throw switch SW1, the second indicator light LED2 is turned on, the external power supply is connected to the signal input end of the data acquisition module after passing through the fourth input contact and the second output contact of the double-pole double-throw switch SW1, and the second indicator light LED2 is turned on to represent that the power supply conversion unit is connected to the external power supply; and a resistor R with a resistance value of 1k is further arranged between the two indicator lamps and the contacts connected with the indicator lamps. The setting of pilot lamp is convenient for the staff observe, in time knows the power access condition, knows the intercommunication state of circuit.
Further, the input end of the alternating current input unit is connected with 220V alternating current; the switching power supply unit is a switching power supply 12V_POWER of direct current 12V and is used for converting 220V alternating current into 12V direct current; the external power supply is 0-36V and the adjustable power supply is 0-36V_IN.
In this embodiment, as shown in fig. 3, the ac input unit is connected to a standard 220V ac power; an input end 220V_AC of the switching power supply unit 12V_POWER receives 220V alternating current, and an output end 12V_OUT outputs 12V direct current; the external power supply is an adjustable power supply with the voltage range of 0-36V and 0-36 V_IN, the power of the access power supply can be selected according to the test requirement, and the adjustable power supply has a larger adjustment range.
Specifically, in the above embodiment, the control module includes a PLC and a plurality of relays, the POWER input port plc_power of the PLC is connected to the first output terminal of the POWER module, the ground port of the PLC is connected to the ground terminal, the output port plc_out of the PLC includes a plurality of output pins, one end of the coil of each relay is connected to the output pin through a control switch, the other end of the coil of each relay is connected to the ground terminal, the output contact of the relay is connected to the signal input terminal of the data acquisition module, the normally closed contact of the relay is connected to the second output terminal of the POWER module, and the normally open contact of the relay is disconnected.
In this embodiment, the power module outputs to the data acquisition module and can be specifically controlled by programming through the PLC, but considering the power problem of the PLC itself, the output port of the PLC cannot be directly connected to the data acquisition module, so that a relay is connected between the PLC and the data acquisition module for control. Specifically, as shown in fig. 3, the output pins of the PLC are divided into four output circuits connected to the signal input end of the data acquisition module, the four output circuits are respectively connected with relays K1 to K4, and each output circuit is respectively connected with a control switch S1 to S4. Based on PLC programming, not only can the equipment to be monitored be selectively accessed through the switch of the control relays K1-K4, but also the specific opening and closing time of the relays K1-K4 can be controlled so as to meet different monitoring requirements.
Further, a resistance wire is connected between the normally closed contact of the relay and the second output end of the power module.
In this embodiment, during the normal test, the second output terminal of the power module outputs current, and the current reaches the signal input port of the data acquisition module after passing through the normally closed contact of the relay, so that the resistance wires F1-F4 are correspondingly arranged between the normally closed contacts of the relays K1-K4 and the second output terminal of the power module, so as to prevent the overload or short circuit of the circuit, thereby protecting other components in the circuit from being damaged and ensuring the electricity use safety.
Specifically, in the above embodiment, the data acquisition module includes a data acquisition chip, the data acquisition chip is provided with signal input port, first data acquisition port, second data acquisition port, signal input port is connected with power module's second output and control module's output respectively, signal input port and first data acquisition port correspond and are provided with the pin the same in quantity, each pin is connected with a device to be monitored respectively in the first data acquisition port, the second data acquisition port is connected with the temperature acquisition panel, the temperature acquisition panel is close to the device to be monitored setting.
In this embodiment, as shown in fig. 3, the data acquisition chip includes two data acquisition ports, where a first data acquisition port is used to directly connect with the devices to be monitored CH1-CH4, and the number of the devices to be monitored connected to the first data acquisition port is equal to the number of circuits connected between the second output end of the power module and the new number input port of the data acquisition chip; in the utility model, the first data acquisition port supplies power to the equipment to be monitored CH1-CH4 on one hand, on the other hand, based on the control instruction of the control module, the connected equipment to be monitored CH1-CH4 is monitored to acquire current and voltage data of the equipment to be monitored CH1-CH4, and the second data acquisition port is connected with the temperature acquisition panel to acquire the temperature of the equipment to be monitored in a working state.
Further, the data acquisition chip is also provided with a reserved acquisition port.
In this embodiment, the data acquisition chip is provided with the reservation acquisition port outside two existing data acquisition ports, and the reservation acquisition port can be set up and extended according to the follow-up test demand for voltage current temperature monitoring circuit can monitor more different kinds of data, has very strong flexibility and compatibility.
The utility model also provides a voltage, current and temperature monitoring device which comprises the voltage, current and temperature monitoring circuit.
The voltage and current temperature monitoring device provided by the utility model is provided with the voltage and current temperature monitoring circuit, has a simple structure, can monitor a plurality of devices to be monitored simultaneously, effectively improves the monitoring efficiency, is efficient and reliable in the detection process, and has strong universality and flexibility.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A voltage-current-temperature monitoring circuit, comprising: the device comprises a power supply module, a control module and a data acquisition module;
the first output end of the power supply module is connected with the power supply input end of the data acquisition module, and the first output end of the power supply module is also connected with the power supply input end of the control module;
the second output end of the power supply module is connected with the signal input end of the data acquisition module, and the output end of the control module is connected with the signal input end of the data acquisition module;
the first data acquisition end of the data acquisition module is respectively connected with a plurality of devices to be monitored, and is used for supplying power to the devices to be monitored and acquiring the voltage and the current of the devices to be monitored;
the second data acquisition end of the data acquisition module is connected with a temperature acquisition panel, and the temperature acquisition panel is used for acquiring the temperature of the equipment to be monitored.
2. The voltage-current temperature monitoring circuit of claim 1, wherein the power module comprises an ac input unit, a switching power supply unit, and a power conversion unit;
the output end of the alternating current input unit is connected with the power input end of the data acquisition module, and the output end of the alternating current input unit is also connected with the input end of the switching power supply unit;
the output end of the switching power supply unit is connected with the power input end of the control module, the output end of the switching power supply unit is also connected with the input end of the power conversion unit, and the output end of the power conversion unit is connected with the signal input end of the data acquisition module.
3. The voltage-current temperature monitoring circuit of claim 2, wherein the power conversion unit comprises a double pole double throw switch and an external power supply;
the first input contact and the second input contact of the double-pole double-throw switch are connected with the grounding end;
the third input contact of the double-pole double-throw switch is connected with the output end of the switching power supply unit;
the fourth input contact of the double-pole double-throw switch is connected with the external power supply;
the first output contact of the double-pole double-throw switch is connected with the output end of the switching power supply unit;
and a second output contact of the double-pole double-throw switch is connected with a signal input end of the data acquisition module.
4. The voltage-current temperature monitoring circuit of claim 3, wherein the power conversion unit further comprises a first indicator light and a second indicator light;
the first indicator lamp is connected between a first input contact of the double-pole double-throw switch and a grounding end;
the second indicator light is connected between a second input contact of the double pole double throw switch and the ground terminal.
5. A voltage-current-temperature monitoring circuit according to claim 3, wherein the input terminal of the ac input unit is connected to 220V ac; the switching power supply unit is a direct-current 12V switching power supply and is used for converting 220V alternating current into 12V direct current; the external power supply is an adjustable power supply with 0-36V.
6. The voltage-current-temperature monitoring circuit of claim 1, wherein the control module comprises a PLC and a plurality of relays;
the power input port of the PLC is connected with the first output end of the power module, and the grounding port of the PLC is connected with the grounding end;
the output port of the PLC comprises a plurality of output pins, one end of a coil of each relay is connected with the output pins through a control switch, and the other end of the coil of each relay is connected with a grounding end;
the output contact of the relay is connected with the signal input end of the data acquisition module, the normally closed contact of the relay is connected with the second output end of the power module, and the normally open contact of the relay is disconnected.
7. The voltage-current temperature monitoring circuit of claim 6, wherein a resistance wire is connected between the normally closed contact of the relay and the second output of the power module.
8. The voltage-current-temperature monitoring circuit of claim 1, wherein the data acquisition module comprises a data acquisition chip;
the data acquisition chip is provided with a signal input port, a first data acquisition port and a second data acquisition port;
the signal input port is respectively connected with the second output end of the power supply module and the output end of the control module;
the signal input port and the first data acquisition port are correspondingly provided with pins with the same number, and each pin in the first data acquisition port is respectively connected with one device to be monitored;
the second data acquisition port is connected with the temperature acquisition panel, and the temperature acquisition panel is close to equipment to be monitored.
9. The voltage-current-temperature monitoring circuit of claim 8, wherein the data acquisition chip is further provided with a reserved acquisition port.
10. A voltage-current-temperature monitoring device, comprising:
a voltage current temperature monitoring circuit as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321230127.3U CN219589729U (en) | 2023-05-19 | 2023-05-19 | Voltage current temperature monitoring circuit and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321230127.3U CN219589729U (en) | 2023-05-19 | 2023-05-19 | Voltage current temperature monitoring circuit and device |
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| Publication Number | Publication Date |
|---|---|
| CN219589729U true CN219589729U (en) | 2023-08-25 |
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|---|---|---|---|
| CN202321230127.3U Active CN219589729U (en) | 2023-05-19 | 2023-05-19 | Voltage current temperature monitoring circuit and device |
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| CN (1) | CN219589729U (en) |
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2023
- 2023-05-19 CN CN202321230127.3U patent/CN219589729U/en active Active
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