CN212588142U - Power supply control system of cable distributed wireless temperature measurement equipment - Google Patents
Power supply control system of cable distributed wireless temperature measurement equipment Download PDFInfo
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- CN212588142U CN212588142U CN202021673313.0U CN202021673313U CN212588142U CN 212588142 U CN212588142 U CN 212588142U CN 202021673313 U CN202021673313 U CN 202021673313U CN 212588142 U CN212588142 U CN 212588142U
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- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 18
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 66
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 66
- 238000001514 detection method Methods 0.000 claims description 32
- 230000000087 stabilizing effect Effects 0.000 claims description 14
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000006698 induction Effects 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a pair of wireless temperature measurement equipment power supply control system of cable distributing type, include: the current transformer obtains electricity from the cable in an induction way and outputs the electricity to the commercial power supply module, the input end of the commercial power supply module is connected with the output end of the current transformer, the input end of the lithium battery charging control circuit is connected with the output end of the commercial power supply module, the output end of the lithium battery charging control circuit is connected with the anode of the lithium battery, the lithium battery power supply control circuit is used for detecting the on-off of the mains supply and switching the mains supply to the lithium battery power supply when the mains supply is powered off, the input end of the lithium battery power supply control circuit is connected with the anode of the lithium battery, through the utility model discloses, can provide reliable and stable direct current for the wireless temperature measurement equipment of cable distributing type, ensure that cable temperature data can be in real time, upload steadily, do benefit to power system's fortune dimension, whole circuit structure is simple moreover, and is reliable, can effectively reduce production, use cost.
Description
Technical Field
The utility model relates to a power supply control system especially relates to a wireless temperature measurement equipment power supply control system of cable distributing type.
Background
In the power cable laying of urban distribution networks, the following modes are generally adopted: cable pit lays or calandria lays, also or cable tunnel lays, and especially the mode that cable pit laid is used most generally, in the electric power operation, needs to monitor the relevant parameter of cable, especially cable joint's temperature parameter, and cable joint's temperature height has reflected the operational aspect of cable, when carrying out cable temperature and detecting, needs to upload cable temperature real-time, and the uploading real-time of cable temperature data mainly has two aspects: communication network's stability and information acquisition equipment's stability, and information acquisition equipment can adopt contact temperature measurement, but this kind of mode security is low, and wireless temperature measurement is the mode that now extensively adopts, information equipment's stability mainly relies on the stability of power supply, among the prior art, the power supply to cable wireless temperature measurement equipment generally relies on the commercial power, when the commercial power breaks down, then can't further carry out data detection, although be provided with the UPS power among the prior art, but the UPS power generally is complete sets, be unfavorable for laying the arrangement at the cable, and the structure is promptly complicated, use cost and manufacturing cost are all very high.
Therefore, in order to solve the above technical problems, it is necessary to provide a new technical means for solving the problems.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a wireless temperature measurement equipment power supply control system of cable distributing type can provide reliable and stable direct current for the wireless temperature measurement equipment of cable distributing type, ensures that cable temperature data can upload in real time, steadily, does benefit to power system's fortune dimension, and whole circuit structure is simple moreover, and is reliable, can effectively reduce production, use cost.
The utility model provides a power supply control system of cable distributed wireless temperature measurement equipment, which comprises a current transformer, a commercial power supply module, a lithium battery charging control circuit and a lithium battery power supply control circuit, wherein the commercial power supply module is used for converting alternating current signals output by the current transformer into direct current and outputting the direct current;
the utility model discloses a lithium battery, including current transformer, commercial power supply module, lithium battery charging control circuit, lithium battery power supply control circuit's input is connected with current transformer's output, lithium battery charging control circuit's input is connected with the output of commercial power supply module, and lithium battery power supply control circuit's input is connected in the positive pole of lithium battery.
Further, the lithium battery charging control circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R10, a tap resistor R11, a capacitor C1, a voltage-stabilizing tube ZD1, a voltage-stabilizing tube ZD2, a controllable precision voltage-stabilizing source U1, a triode Q1, a triode Q2, a triode Q6, a triode Q5 and a diode D1;
one end of the resistor R2 is used as the input end of the lithium battery charging control circuit and connected with the output end of the commercial power supply module, the other end of the resistor R2 is connected with the collector of the triode Q2, the emitter of the triode Q2 is connected with the emitter of the triode Q6, the collector of the triode Q6 is connected with the anode of the diode D1, and the cathode of the diode D1 is used as the output end of the lithium battery charging control circuit;
the collector of a triode Q2 is connected with the base of a triode Q2 through a resistor R3, the base of the triode Q2 is connected with the negative electrode of a controllable precise voltage-stabilizing source U1, the positive electrode of the controllable precise voltage-stabilizing source U1 is grounded, the emitter of the triode Q2 is grounded after being connected in series through a resistor R10 and a tap resistor R11, a moving contact of the tap resistor R11 is connected with the reference electrode of the controllable precise voltage-stabilizing source U1, the emitter of the triode Q2 is grounded through a capacitor C1, the emitter of the triode Q2 is connected with the negative electrode of a voltage-stabilizing tube ZD2, the positive electrode of the voltage-stabilizing tube ZD2 is grounded, the emitter of the triode Q6 is connected with the collector of the triode Q5 through a resistor R8, the base of the triode Q6 is connected with the collector of the triode Q5 through a resistor;
one end of the resistor R1 is connected to a common connection point between the resistor R2 and the output end of the mains supply module, the other end of the resistor R2 is connected with the emitter of the triode Q1, the collector of the triode Q1 is connected with the base of the triode Q5 through the resistor R7, the base of the triode Q1 is connected with the emitter of the triode Q2 through the resistor R4, the base of the triode Q1 is connected with the anode of the voltage regulator tube ZD1, and the cathode of the triode ZD1 is connected with the cathode of the diode D1 through the resistor R5;
the triode Q1 and the triode Q6 are P-type triodes.
Further, the lithium battery power supply control circuit comprises an on-off detection control circuit for detecting the on-off of the mains supply and a power supply on-off control circuit;
the input end of the on-off detection control circuit is connected with the anode of the lithium battery, the output end of the on-off detection control circuit is connected with the input end of the power supply on-off control circuit, the detection input end of the on-off detection control circuit is connected with the output end of the commercial power supply module, and the output end of the power supply on-off control circuit supplies power to the wireless temperature measurement equipment.
Further, the on-off detection control circuit comprises a resistor R12, a resistor R13, a diode D2 and a triode Q3;
one end of a resistor R12 is used as a detection input end of an on-off detection control circuit and connected to an output end of a mains supply module, the other end of the resistor R12 is connected with a base electrode of a triode Q3, an emitter electrode of a triode Q3 is used as an input end of the on-off detection control circuit and connected to a lithium battery, a collector electrode of a triode Q3 is used as an output end of the on-off detection control circuit, an emitter electrode of a triode Q3 is connected with an anode of a diode D2 through a resistor R13, and a cathode of the diode D2 is connected to a base electrode;
the transistor Q3 is a P-type transistor.
Further, the power supply on-off control circuit comprises a resistor R9, a resistor R14, a resistor R15, a PMOS tube Q4, a triode Q7 and a voltage regulator tube ZD 3;
the source electrode of the PMOS tube Q4 serves as the input end of the power supply on-off control circuit, the drain electrode of the PMOS tube Q4 serves as the output end of the power supply on-off control circuit, the source electrode of the PMOS tube Q4 is connected with the negative electrode of the voltage regulator tube ZD3, the positive electrode of the voltage regulator tube ZD3 is connected with the base electrode of the triode Q7 through the resistor R14, the emitter electrode of the triode Q7 is grounded, the collector electrode of the triode Q7 is connected to the grid electrode of the PMOS tube Q4 through the resistor R9, and the collector electrode of the triode Q7 is connected to the source electrode of the PMOS tube.
Further, the commercial power supply module comprises a rectification circuit, a filter circuit and a voltage stabilizing circuit;
the input end of the rectifying circuit is connected with the output end of the current transformer, the output end of the rectifying circuit is connected with the input end of the filter circuit, the output end of the filter circuit is connected with the input end of the voltage stabilizing circuit, and the output end of the voltage stabilizing circuit is used as the output end of the commercial power supply module.
The utility model has the advantages that: through the utility model discloses, can provide reliable and stable direct current for the wireless temperature measurement equipment of cable distributing type, ensure that cable temperature data can be in real time, upload steadily, do benefit to power system's fortune dimension, whole circuit structure is simple moreover, and is reliable, can effectively reduce production, use cost.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the schematic diagram of the lithium battery charging control circuit and the lithium battery power supply control circuit of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings in the specification:
the utility model provides a power supply control system of cable distributed wireless temperature measurement equipment, which comprises a current transformer, a commercial power supply module, a lithium battery charging control circuit and a lithium battery power supply control circuit, wherein the commercial power supply module is used for converting alternating current signals output by the current transformer into direct current and outputting the direct current;
the current transformer obtains electricity from the cable in an induction way and outputs the electricity to the commercial power supply module, the input end of the commercial power supply module is connected with the output end of the current transformer, the input end of the lithium battery charging control circuit is connected with the output end of the commercial power supply module, the output end of the lithium battery charging control circuit is connected with the anode of the lithium battery, the lithium battery charging control circuit is used for detecting the on-off state of the commercial power supply and switching the commercial power supply to the lithium battery power supply when the commercial power is cut off, the input end of the lithium battery charging control circuit is connected with the anode of the lithium battery, the stable and reliable direct current can be provided for the cable distributed wireless temperature measurement equipment, the cable temperature data can be ensured to be uploaded stably in real time, the operation and maintenance of a power system are facilitated, the whole circuit structure, the distributed type is that a plurality of monitoring points are arranged on a cable laying line, and each monitoring point is provided with a wireless temperature measuring device.
In this embodiment, the lithium battery charging control circuit includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R10, a tap resistor R11, a capacitor C1, a voltage regulator tube ZD1, a voltage regulator tube ZD2, a controllable precision voltage regulator source U1, a triode Q1, a triode Q2, a triode Q6, a triode Q5, and a diode D1;
one end of the resistor R2 is used as the input end of the lithium battery charging control circuit and connected with the output end of the commercial power supply module, the other end of the resistor R2 is connected with the collector of the triode Q2, the emitter of the triode Q2 is connected with the emitter of the triode Q6, the collector of the triode Q6 is connected with the anode of the diode D1, and the cathode of the diode D1 is used as the output end of the lithium battery charging control circuit;
the collector of a triode Q2 is connected with the base of a triode Q2 through a resistor R3, the base of the triode Q2 is connected with the negative electrode of a controllable precise voltage-stabilizing source U1, the positive electrode of the controllable precise voltage-stabilizing source U1 is grounded, the emitter of the triode Q2 is grounded after being connected in series through a resistor R10 and a tap resistor R11, a moving contact of the tap resistor R11 is connected with the reference electrode of the controllable precise voltage-stabilizing source U1, the emitter of the triode Q2 is grounded through a capacitor C1, the emitter of the triode Q2 is connected with the negative electrode of a voltage-stabilizing tube ZD2, the positive electrode of the voltage-stabilizing tube ZD2 is grounded, the emitter of the triode Q6 is connected with the collector of the triode Q5 through a resistor R8, the base of the triode Q6 is connected with the collector of the triode Q5 through a resistor;
one end of the resistor R1 is connected to a common connection point between the resistor R2 and the output end of the mains supply module, the other end of the resistor R2 is connected with the emitter of the triode Q1, the collector of the triode Q1 is connected with the base of the triode Q5 through the resistor R7, the base of the triode Q1 is connected with the emitter of the triode Q2 through the resistor R4, the base of the triode Q1 is connected with the anode of the voltage regulator tube ZD1, and the cathode of the triode ZD1 is connected with the cathode of the diode D1 through the resistor R5;
the triode Q1 and the triode Q6 are P-type triodes; when the lithium battery is in low power, a voltage stabilizing source is formed by a triode Q2, a controllable precise voltage stabilizing source U1, a resistor R3, a resistor R10 and a tap resistor R11, so that the charging current and voltage stability of the lithium battery are ensured, when the lithium battery is charged, the base voltage of a triode Q1 is lower than the voltage of an emitter, a triode Q1 is reversely biased and conducted, the triode Q5 is conducted, the base voltage of the triode Q6 is reduced, the triode Q6 is conducted, so that the lithium battery is charged, when the voltage of the lithium battery gradually rises along with charging and reaches the rated voltage when the lithium battery is full of power, a voltage stabilizing tube ZD1 is conducted, so that the base and the emitter of the triode Q1 are forward biased, the triode Q1 is cut off, the triode Q5 is cut off, the triode Q6 is cut off, so that the lithium battery is stopped to be charged, and by the structure, the stable charging voltage and charging, and can prevent lithium cell overcharge to whole control simple structure, it is lower for current lithium cell charging chip cost.
In this embodiment, the lithium battery power supply control circuit includes an on-off detection control circuit for detecting the on-off of the mains supply and a power supply on-off control circuit;
the input end of the on-off detection control circuit is connected with the anode of the lithium battery, the output end of the on-off detection control circuit is connected with the input end of the power supply on-off control circuit, the detection input end of the on-off detection control circuit is connected with the output end of the commercial power supply module, and the output end of the power supply on-off control circuit supplies power to the wireless temperature measurement equipment.
Specifically, the method comprises the following steps: the on-off detection control circuit comprises a resistor R12, a resistor R13, a diode D2 and a triode Q3;
one end of a resistor R12 is used as a detection input end of an on-off detection control circuit and connected to an output end of a mains supply module, the other end of the resistor R12 is connected with a base electrode of a triode Q3, an emitter electrode of a triode Q3 is used as an input end of the on-off detection control circuit and connected to a lithium battery, a collector electrode of a triode Q3 is used as an output end of the on-off detection control circuit, an emitter electrode of a triode Q3 is connected with an anode of a diode D2 through a resistor R13, and a cathode of the diode D2 is connected to a base electrode;
the transistor Q3 is a P-type transistor.
The power supply on-off control circuit comprises a resistor R9, a resistor R14, a resistor R15, a PMOS tube Q4, a triode Q7 and a voltage regulator tube ZD 3;
the source electrode of a PMOS tube Q4 serves as the input end of a power supply on-off control circuit, the drain electrode of a PMOS tube Q4 serves as the output end of the power supply on-off control circuit, the source electrode of a PMOS tube Q4 is connected with the negative electrode of a voltage regulator tube ZD3, the positive electrode of the voltage regulator tube ZD3 is connected with the base electrode of a triode Q7 through a resistor R14, the emitter electrode of the triode Q7 is grounded, the collector electrode of a triode Q7 is connected with the grid electrode of the PMOS tube Q4 through a resistor R9, and the collector electrode of a triode Q7 is connected with the source electrode of a PMOS tube; when the mains supply is normal, at the moment, the base electrode and the emitting electrode of the triode Q3 are biased in the forward direction, and the triode Q3 is cut off, so that the lithium battery cannot supply power to the electric equipment; when the commercial power supply module is powered off due to commercial power or the commercial power supply module is out of power, at the moment, reverse bias voltage is arranged between the base electrode and the emitting electrode of the triode Q3 and is larger than conducting voltage, the triode Q3 is conducted, at the moment, the voltage of the lithium battery is larger than the conducting voltage of ZD3, the triode Q7 is conducted, the PMOS tube Q4 is conducted, and then the lithium battery is powered on, wherein the voltage stabilizing tube ZD3 is used for monitoring the voltage of the lithium battery in real time, when the voltage of the lithium battery is reduced to the voltage for stopping discharging, the voltage stabilizing tube ZD3 is cut off, and then the triode Q7 and the PMOS tube Q4 are controlled to be cut off.
In this embodiment, the utility power supply module includes a rectification circuit, a filter circuit and a voltage stabilizing circuit;
the input end of the rectifying circuit is connected with the output end of the current transformer, the output end of the rectifying circuit is connected with the input end of the filter circuit, the output end of the filter circuit is connected with the input end of the voltage stabilizing circuit, and the output end of the voltage stabilizing circuit is used as the output end of the commercial power supply module.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (6)
1. The utility model provides a cable distributing type wireless temperature measurement equipment power supply control system which characterized in that: the system comprises a current transformer, a mains supply power supply module, a lithium battery charging control circuit and a lithium battery power supply control circuit, wherein the mains supply power supply module is used for converting an alternating current signal output by the current transformer into direct current and outputting the direct current signal;
the utility model discloses a lithium battery, including current transformer, commercial power supply module, lithium battery charging control circuit, lithium battery power supply control circuit's input is connected with current transformer's output, lithium battery charging control circuit's input is connected with the output of commercial power supply module, and lithium battery power supply control circuit's input is connected in the positive pole of lithium battery.
2. The power supply control system of the cable distributed wireless temperature measuring equipment according to claim 1, characterized in that: the lithium battery charging control circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R10, a tap resistor R11, a capacitor C1, a voltage regulator tube ZD1, a voltage regulator tube ZD2, a controllable precision voltage regulator source U1, a triode Q1, a triode Q2, a triode Q6, a triode Q5 and a diode D1;
one end of the resistor R2 is used as the input end of the lithium battery charging control circuit and connected with the output end of the commercial power supply module, the other end of the resistor R2 is connected with the collector of the triode Q2, the emitter of the triode Q2 is connected with the emitter of the triode Q6, the collector of the triode Q6 is connected with the anode of the diode D1, and the cathode of the diode D1 is used as the output end of the lithium battery charging control circuit;
the collector of a triode Q2 is connected with the base of a triode Q2 through a resistor R3, the base of the triode Q2 is connected with the negative electrode of a controllable precise voltage-stabilizing source U1, the positive electrode of the controllable precise voltage-stabilizing source U1 is grounded, the emitter of the triode Q2 is grounded after being connected in series through a resistor R10 and a tap resistor R11, a moving contact of the tap resistor R11 is connected with the reference electrode of the controllable precise voltage-stabilizing source U1, the emitter of the triode Q2 is grounded through a capacitor C1, the emitter of the triode Q2 is connected with the negative electrode of a voltage-stabilizing tube ZD2, the positive electrode of the voltage-stabilizing tube ZD2 is grounded, the emitter of the triode Q6 is connected with the collector of the triode Q5 through a resistor R8, the base of the triode Q6 is connected with the collector of the triode Q5 through a resistor;
one end of the resistor R1 is connected to a common connection point between the resistor R2 and the output end of the mains supply module, the other end of the resistor R2 is connected with the emitter of the triode Q1, the collector of the triode Q1 is connected with the base of the triode Q5 through the resistor R7, the base of the triode Q1 is connected with the emitter of the triode Q2 through the resistor R4, the base of the triode Q1 is connected with the anode of the voltage regulator tube ZD1, and the cathode of the triode ZD1 is connected with the cathode of the diode D1 through the resistor R5;
the triode Q1 and the triode Q6 are P-type triodes.
3. The power supply control system of the cable distributed wireless temperature measuring equipment according to claim 1, characterized in that: the lithium battery power supply control circuit comprises an on-off detection control circuit and a power supply on-off control circuit, wherein the on-off detection control circuit is used for detecting the on-off of the mains supply;
the input end of the on-off detection control circuit is connected with the anode of the lithium battery, the output end of the on-off detection control circuit is connected with the input end of the power supply on-off control circuit, the detection input end of the on-off detection control circuit is connected with the output end of the commercial power supply module, and the output end of the power supply on-off control circuit supplies power to the wireless temperature measurement equipment.
4. The power supply control system of the cable distributed wireless temperature measuring equipment as claimed in claim 3, wherein: the on-off detection control circuit comprises a resistor R12, a resistor R13, a diode D2 and a triode Q3;
one end of a resistor R12 is used as a detection input end of an on-off detection control circuit and connected to an output end of a mains supply module, the other end of the resistor R12 is connected with a base electrode of a triode Q3, an emitter electrode of a triode Q3 is used as an input end of the on-off detection control circuit and connected to a lithium battery, a collector electrode of a triode Q3 is used as an output end of the on-off detection control circuit, an emitter electrode of a triode Q3 is connected with an anode of a diode D2 through a resistor R13, and a cathode of the diode D2 is connected to a base electrode;
the transistor Q3 is a P-type transistor.
5. The power supply control system of the cable distributed wireless temperature measuring equipment as claimed in claim 3, wherein: the power supply on-off control circuit comprises a resistor R9, a resistor R14, a resistor R15, a PMOS tube Q4, a triode Q7 and a voltage regulator tube ZD 3;
the source electrode of the PMOS tube Q4 serves as the input end of the power supply on-off control circuit, the drain electrode of the PMOS tube Q4 serves as the output end of the power supply on-off control circuit, the source electrode of the PMOS tube Q4 is connected with the negative electrode of the voltage regulator tube ZD3, the positive electrode of the voltage regulator tube ZD3 is connected with the base electrode of the triode Q7 through the resistor R14, the emitter electrode of the triode Q7 is grounded, the collector electrode of the triode Q7 is connected to the grid electrode of the PMOS tube Q4 through the resistor R9, and the collector electrode of the triode Q7 is connected to the source electrode of the PMOS tube.
6. The power supply control system of the cable distributed wireless temperature measuring equipment according to claim 1, characterized in that: the commercial power supply module comprises a rectifying circuit, a filter circuit and a voltage stabilizing circuit;
the input end of the rectifying circuit is connected with the output end of the current transformer, the output end of the rectifying circuit is connected with the input end of the filter circuit, the output end of the filter circuit is connected with the input end of the voltage stabilizing circuit, and the output end of the voltage stabilizing circuit is used as the output end of the commercial power supply module.
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| CN202021673313.0U CN212588142U (en) | 2020-08-12 | 2020-08-12 | Power supply control system of cable distributed wireless temperature measurement equipment |
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| CN202021673313.0U CN212588142U (en) | 2020-08-12 | 2020-08-12 | Power supply control system of cable distributed wireless temperature measurement equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113452153A (en) * | 2021-07-28 | 2021-09-28 | 国家电网有限公司 | Online energy-taking and power-supplying system for ground wire of overhead transmission line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113452153A (en) * | 2021-07-28 | 2021-09-28 | 国家电网有限公司 | Online energy-taking and power-supplying system for ground wire of overhead transmission line |
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