CN211180051U - Low-voltage power failure detection positioning system - Google Patents
Low-voltage power failure detection positioning system Download PDFInfo
- Publication number
- CN211180051U CN211180051U CN201921366587.2U CN201921366587U CN211180051U CN 211180051 U CN211180051 U CN 211180051U CN 201921366587 U CN201921366587 U CN 201921366587U CN 211180051 U CN211180051 U CN 211180051U
- Authority
- CN
- China
- Prior art keywords
- resistor
- capacitor
- circuit
- low
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a low pressure power failure detection positioning system. The system comprises a fault detection circuit, a signal generation circuit, a signal coupling circuit, a signal receiving and band-pass filter and a power supply circuit. When the system is applied, the system and other same systems are arranged on the low-voltage power line in sequence and are connected with the low-voltage power line. The utility model is suitable for a power line, especially the fault detection of low pressure power line sets up on the power line through with this system sequence, falls into a plurality of sections with the power line and monitors respectively, can in time confirm the trouble highway section when detecting the trouble to report to the police to technical staff or user in real time, relevant personnel can find trouble department in time maintenance and processing according to the location.
Description
Technical Field
The utility model belongs to the technical field of the circuit, especially, relate to a low pressure power failure detection positioning system.
Background
In the process of electric energy application, the safe and efficient circuit network can ensure the efficient electricity utilization of people, and provides powerful guarantee for the normal operation of daily life or industrial production. However, if circuit faults occur unintentionally or inevitably during this process, which are not noticed by people, then there is a great safety risk, endangering life and property, with serious consequences.
If the power failure detection positioning alarm system can be provided, the circuit failure can be detected in time and an alarm can be given in time, and the failure position can be accurately positioned so as to conveniently convey corresponding failure information to related technicians. The related technical personnel can arrive at the site for treatment at the first time, the potential safety hazard can be eliminated in time, and the property loss and the casualties can be avoided as much as possible, which is very significant.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model discloses a low-voltage power failure detection positioning system, a plurality of systems are arranged on a low-voltage power line in sequence and are connected with the low-voltage power line; the system comprises a fault detection circuit, a signal generation circuit, a signal coupling circuit, a signal receiving and band-pass filter and a power supply circuit;
the input end of the fault detection circuit is connected with the low-voltage power line, and the output end of the fault detection circuit is connected with the signal generation circuit and is used for detecting the voltage of the corresponding low-voltage power line part and outputting a corresponding voltage signal;
the output end of the signal generating circuit is connected with the signal coupling circuit and is used for generating a signal with fixed frequency to be superposed with the received voltage signal and transmitting the superposed mixed signal to the signal coupling circuit;
the output end of the signal coupling circuit is connected with the low-voltage power line and is used for coupling the mixed signal to the low-voltage power line and transmitting the mixed signal to a signal receiving and band-pass filter of a next-stage system through the low-voltage power line;
the input end of the signal receiving and band-pass filter is connected with the low-voltage power line and used for receiving the mixed signal of the previous system and judging whether the low-voltage power line between the current system and the previous system has a fault or not by detecting the amplitude of the specified frequency signal;
the power supply circuit is used for supplying power to other circuits of the system.
And the alarm circuit is connected with the signal receiving and band-pass filter and used for alarming when a low-voltage power line between the system at the current stage and the system at the previous stage fails.
Further, the fault detection circuit comprises a second resistor, a third resistor, a voltage transformer, a first capacitor, a first resistor, a first operational amplifier A, a first operational amplifier B, a fifth resistor, a sixth resistor, a first diode, a second capacitor and a fourth resistor;
the low-voltage power line is connected with the input end of the voltage transformer through a second resistor; the positive output end of the voltage transformer is connected with one end of the third resistor and one end of the first capacitor, and the negative output end of the voltage transformer is connected with the other end of the third resistor and grounded; the other end of the first capacitor is connected with a first resistor and the non-inverting input end of the first operational amplifier A, and the other end of the first resistor is grounded; one end of the fifth resistor is grounded, and the other end of the fifth resistor is grounded; the output end of the first operational amplifier A is connected with the inverting input end through a sixth resistor and is connected with the non-inverting input end of the first operational amplifier B, and the output end of the first operational amplifier B is connected with the inverting input end and is connected with the positive pole of the first diode and the negative pole of the second diode; the negative pole of the first diode and the positive pole of the second diode are respectively connected to two parallel points of a parallel circuit consisting of the second capacitor and the fourth resistor; the anode of the second diode is also grounded; the junction of the first diode and the parallel circuit serves as the output of the fault detection and location circuit.
Further, the signal receiving and band-pass filter includes a third capacitor, a sixth capacitor, a first inductor, a second inductor, a fifth capacitor, a first coupling transformer, a tenth resistor, a seventh capacitor, a fourth capacitor, an eleventh resistor, a fifteenth resistor, a second operational amplifier a, a seventh resistor, and an eighth resistor;
a series branch formed by connecting a third capacitor and a first inductor and a series branch formed by connecting a sixth capacitor and a second inductor are respectively connected to two ends of a fifth capacitor, the fifth capacitor is connected with a coil at the input end of the first coupling transformer in parallel, the synonym end of the output end of the first coupling transformer is grounded, and the synonym end is connected with one end of a tenth resistor; the other end of the tenth resistor is connected with the seventh capacitor and then grounded, and is connected with one end of the fourth capacitor and one end of the fifteenth resistor, the other end of the fifteenth resistor is connected with the output end of the second operational amplifier A, the other end of the fourth capacitor is connected with one end of the eleventh resistor and the non-inverting input end of the third operational amplifier A, and the other end of the eleventh resistor is grounded; the inverting input end of the second operational amplifier A is connected with one end of a seventh resistor and one end of an eighth resistor, the other end of the seventh resistor is grounded, and the other end of the eighth resistor is connected with the output end of the second operational amplifier A.
Furthermore, the alarm circuit comprises a twenty-second resistor, a thirteenth capacitor, a twenty-fourth resistor, a twenty-fifth resistor, a twenty-first resistor, a second unidirectional silicon controlled rectifier and an alarm; one end of the twenty-second resistor is connected with the output end of the second A operational amplifier, and the other end of the twenty-second resistor is connected with the non-inverting input end of the third B operational amplifier; one end of the thirteenth capacitor is connected with the non-inverting input end of the third B operational amplifier, and the other end of the thirteenth capacitor is grounded; the inverting input end of the third B operational amplifier is connected with one end of a twenty-fourth resistor and one end of a twenty-fifth resistor, the other end of the twenty-fifth resistor is connected with a power supply, and the other end of the twenty-fourth resistor is grounded; the output end of the third B operational amplifier is connected with the control electrode of the second unidirectional silicon controlled rectifier, one end of the twenty-first resistor is connected with the power supply, the other end of the twenty-first resistor is connected to the anode of the second unidirectional silicon controlled rectifier, and the cathode of the second unidirectional silicon controlled rectifier is connected with the alarm.
Furthermore, the power supply circuit comprises an AC-DC circuit, a DC-DC battery charging module and an uninterrupted power supply module;
the DC-DC battery charging module comprises a fifth diode, a battery charging module and a battery pack; the anode of the fifth diode is connected with the output end of the AC-DC circuit, the cathode of the fifth diode is connected with the input end of the battery charging module, and the output end of the battery charging module is connected to the battery pack;
the uninterrupted power supply module comprises a solid-state relay, a first triode, a twenty-sixth resistor and an eighteenth capacitor; the output end of the AC-DC circuit is connected to the normally open end of the solid-state relay, the output end of the DC-DC battery charging module is connected to the normally closed end and the high potential end of the solid-state relay, the low potential end of the solid-state relay is connected with the collector of the first triode, the emitter of the first triode is grounded, the base of the first triode is connected with the twenty-sixth resistor and then connected to the output end of the AC-DC circuit, and the base of the first triode is connected with the eighteenth capacitor and then grounded.
The utility model has the advantages that:
the utility model is suitable for a power line, especially the fault detection of low pressure power line sets up on the power line through with this system sequence, falls into a plurality of sections with the power line and monitors respectively, can in time confirm the trouble highway section when detecting the trouble to report to the police to technical staff or user in real time, relevant personnel can find trouble department in time maintenance and processing according to the location.
Drawings
FIG. 1 is a schematic diagram of a fault detection circuit.
Fig. 2 is a schematic diagram of a signal generating circuit.
Fig. 3 is a schematic diagram of a signal coupling circuit.
Fig. 4 is a schematic diagram of a signal receiving and band-pass filter.
FIG. 5 is a schematic diagram of an alarm circuit.
Fig. 6 is a schematic diagram of a power supply circuit.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to fig. 1 to 6.
The utility model discloses a low pressure power failure detection positioning system, including fault detection circuit, signal generation circuit, signal coupling circuit, signal reception and band pass filter, supply circuit. The low voltage power line can be AC220 low voltage power line. Each circuit will be described separately below.
1. Fault detection circuit
The input end of the fault detection circuit is connected with the low-voltage power line, and the output end of the fault detection circuit is connected with the signal generation circuit and used for detecting the voltage of the corresponding low-voltage power line part and outputting a corresponding voltage signal.
As shown in fig. 1, the fault detection circuit includes a second resistor, a third resistor, a voltage transformer, a first capacitor, a first resistor, a first operational amplifier a, a first operational amplifier B, a fifth resistor, a sixth resistor, a first diode, a second capacitor, and a fourth resistor;
the low-voltage power line is connected with the input end of the voltage transformer through a second resistor; the positive output end of the voltage transformer is connected with one end of the third resistor and one end of the first capacitor, and the negative output end of the voltage transformer is connected with the other end of the third resistor and grounded; the other end of the first capacitor is connected with a first resistor and the non-inverting input end of the first operational amplifier A, and the other end of the first resistor is grounded; one end of the fifth resistor is grounded, and the other end of the fifth resistor is grounded; the output end of the first operational amplifier A is connected with the inverting input end through a sixth resistor and is connected with the non-inverting input end of the first operational amplifier B, and the output end of the first operational amplifier B is connected with the inverting input end and is connected with the positive pole of the first diode and the negative pole of the second diode; the negative pole of the first diode and the positive pole of the second diode are respectively connected to two parallel points of a parallel circuit consisting of the second capacitor and the fourth resistor; the anode of the second diode is also grounded; the junction of the first diode and the parallel circuit serves as the output of the fault detection and location circuit.
The working principle is explained below with reference to fig. 1:
the fault corresponding to the low-voltage power line circuit section causes the change of high and low levels, when the fault passes through the voltage transformer, high voltage is converted into lower voltage according to a certain proportion, irrelevant signals are filtered through a first capacitor C1, the signals flow through the in-phase input end of a first operational amplifier, the voltage on the in-phase input end is higher than that of the inverted phase end, corresponding amplified signals are output, the amplified signals flow through a first diode D1, and the amplified signals are integrated and transmitted to an output end (namely an IO interface end in the figure 1) through the rectification action of a second capacitor C2 and a fourth resistor R4 and then transmitted to a signal generating circuit.
2. Signal generating circuit
The output end of the signal generating circuit is connected with the signal coupling circuit and is used for generating a signal with fixed frequency (such as 20KHZ) and fixed amplitude, and the amplitude of the sine wave can be changed by superposing the signal with the received voltage signal to generate a mixed signal. The mixed signal is transmitted to a signal coupling circuit. The amplitude can be used as a basis for judging whether a fault occurs.
The signal generating circuit may adopt an existing mature circuit module, as shown in fig. 2, which is not described herein.
The operation principle will be described with reference to fig. 2.
The signal generating circuit mainly comprises an operational amplifier, diodes and other elements, a signal received by an IO port flows through an eighth capacitor C8, only an alternating current signal is allowed to pass through due to the blocking and alternating current effects of the capacitors, the two diodes are arranged at the position and have opposite directions, the corresponding correct signal can pass through, the interference signal is prevented from passing through, the accuracy of positioning information is ensured, and the signal is amplified again through the operational amplifier.
3. Signal coupling circuit
And the output end of the signal coupling circuit is connected with the low-voltage power line and is used for coupling the mixed signal to the low-voltage power line and transmitting the mixed signal to a signal receiving and band-pass filter of a next-stage system through the current direction of the low-voltage power line. The circuit may adopt an existing mature circuit module, as shown in fig. 3, which is not described herein.
The working principle of signal coupling is explained below with reference to fig. 3:
the signal flowing in from SGIN causes the signal of the power transistor Q3 to change, and the signal passes through the coupling transformer T3, and then passes through the frequency selection function of the inductors L3, L4, C14 and C17, respectively, and is transmitted to the AC220 interface.
4. Signal receiving and band-pass filter
The input end of the signal receiving and band-pass filter is connected with the low-voltage power line and used for receiving the mixed signal of the previous-stage system and judging whether the low-voltage power line between the current-stage system and the previous-stage system has a fault or not by detecting the amplitude of the specified frequency signal. The band-pass filter can allow the frequency signal wave in the designated range to pass through, thereby filtering interference signals and ensuring the accuracy of signal positioning.
As shown in fig. 4, the signal receiving and band-pass filter includes a third capacitor, a sixth capacitor, a first inductor, a second inductor, a fifth capacitor, a first coupling transformer, a tenth resistor, a seventh capacitor, a fourth capacitor, an eleventh resistor, a fifteenth resistor, a second operational amplifier a, a seventh resistor, and an eighth resistor;
a series branch formed by connecting a third capacitor and a first inductor and a series branch formed by connecting a sixth capacitor and a second inductor are respectively connected to two ends of a fifth capacitor, the fifth capacitor is connected with a coil at the input end of the first coupling transformer in parallel, the synonym end of the output end of the first coupling transformer is grounded, and the synonym end is connected with one end of a tenth resistor; the other end of the tenth resistor is connected with the seventh capacitor and then grounded, and is connected with one end of the fourth capacitor and one end of the fifteenth resistor, the other end of the fifteenth resistor is connected with the output end of the second operational amplifier A, the other end of the fourth capacitor is connected with one end of the eleventh resistor and the non-inverting input end of the third operational amplifier A, and the other end of the eleventh resistor is grounded; the inverting input end of the second operational amplifier A is connected with one end of a seventh resistor and one end of an eighth resistor, the other end of the seventh resistor is grounded, and the other end of the eighth resistor is connected with the output end of the second operational amplifier A.
5. Alarm circuit
The alarm circuit is connected with the output end of the signal receiving and band-pass filter and used for alarming when a low-voltage power line between the system at the current stage and the system at the previous stage fails. The alarm is used for alarming when the power line between the current stage and the previous stage has a fault. The alarm port is reserved, and other alarm signal receiving modules can be connected to the reserved interface in an expanded mode.
As shown in fig. 5, the alarm circuit includes a twenty-second resistor, a thirteenth capacitor, a twenty-fourth resistor, a twenty-fifth resistor, a twenty-first resistor, a second unidirectional thyristor, and an alarm (reserved interface); one end of the twenty-second resistor is connected with the output end of the second A operational amplifier, and the other end of the twenty-second resistor is connected with the non-inverting input end of the third B operational amplifier; one end of the thirteenth capacitor is connected with the non-inverting input end of the third B operational amplifier, and the other end of the thirteenth capacitor is grounded; the inverting input end of the third B operational amplifier is connected with one end of a twenty-fourth resistor and one end of a twenty-fifth resistor, the other end of the twenty-fifth resistor is connected with a power supply, and the other end of the twenty-fourth resistor is grounded; the output end of the third B operational amplifier is connected with the control electrode of the second unidirectional silicon controlled rectifier, one end of the twenty-first resistor is connected with the power supply, the other end of the twenty-first resistor is connected to the anode of the second unidirectional silicon controlled rectifier, and the cathode of the second unidirectional silicon controlled rectifier is connected with the alarm.
The alarm can adopt various existing alarm modes, such as sound and light.
6. Power supply circuit
The power supply circuit is used for supplying power to other circuits of the system.
As shown in fig. 6, the power supply circuit includes an AC-DC circuit, a DC-DC battery charging module, and an uninterruptible power supply module.
The DC-DC battery charging module comprises a fifth diode, a battery charging module and a battery pack; the anode of the fifth diode is connected with the output end of the AC-DC circuit, the cathode of the fifth diode is connected with the input end of the battery charging module, and the output end of the battery charging module is connected with the battery pack.
The uninterrupted power supply module comprises a solid-state relay, a first triode, a twenty-sixth resistor and an eighteenth capacitor; the output end of the AC-DC circuit is connected to the normally open end of the solid-state relay, the output end of the DC-DC battery charging module is connected to the normally closed end and the high potential end of the solid-state relay, the low potential end of the solid-state relay is connected with the collector of the first triode, the emitter of the first triode is grounded, the base of the first triode is connected with the twenty-sixth resistor and then connected to the output end of the AC-DC circuit, and the base of the first triode is connected with the eighteenth capacitor and then grounded.
The working principle of the power supply circuit is as follows:
the low voltage power line (AC 220V shown in the figure) is converted into 12V direct current (VH) through an AC-DC circuit, and the VH charges a battery pack (BT1) through a DC-DC battery module, wherein the charging voltage is V L (such as 7.2V). when the low voltage power line always meets the voltage requirement (such as 220V), the power source of the whole system is VH, and when the low voltage line fails (such as is lower than AC220V or has no voltage), the solid state relay switch is switched to a V L port, and the battery supplies power to the whole system, so that the long-term online working state of the system is maintained.
The following describes a monitoring method of the above system.
The method comprises the following steps: the fault detection circuit, the signal generation circuit, the signal coupling circuit and the signal receiving and band-pass filter of each system are connected with the low-voltage power line at the corresponding position, and the level of each system is determined sequentially along the current direction of the low-voltage power line;
step two: the fault detection circuit of each stage system detects whether the corresponding low-voltage power line has a fault, and the output signal of the fault detection circuit is superposed with the signal output by the signal generation circuit of the stage;
step three: the mixed signal obtained by superposition is coupled to a low-voltage power line at a corresponding position through a signal coupling circuit of the system at the stage, and is transmitted to a signal receiving and band-pass filter of a next-stage system along the current direction;
step four: the signal receiving and band-pass filter in the third step detects the amplitude of the signal with the specified frequency, and judges whether the low-voltage power line of the system at the current stage and the system at the previous stage has a fault or not by detecting the amplitude of the signal with the specified frequency;
step five: and when the amplitude of the specified frequency signal in the fourth step exceeds or is equal to a preset value, determining that the low-voltage power line between the system of the current stage (namely the system level where the signal receiving and band-pass filter of the received signal is located) and the system of the previous stage has no fault, otherwise, determining that the fault exists.
Further, in the fifth step, when a fault exists, an alarm circuit alarms.
Furthermore, the method also comprises the steps of presetting the signal frequency of the signal generating circuit in each system and setting the frequency of the signals which are allowed to pass through by the signal receiving and band-pass filter in each system.
Furthermore, the signal frequency of the signal generating circuit in each system is different, and the frequency of the signals allowed to pass through by the signal receiving and band-pass filter of each system is the signal frequency output by the signal generator of the previous system.
The above description is only for the specific implementation of the present invention, but the protection scope of the present invention is not limited to the above embodiments, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. A low-voltage power failure detection positioning system is characterized in that a plurality of systems are sequentially arranged on a low-voltage power line and are connected with the low-voltage power line; the system is characterized by comprising a fault detection circuit, a signal generation circuit, a signal coupling circuit, a signal receiving and band-pass filter and a power supply circuit;
the input end of the fault detection circuit is connected with the low-voltage power line, and the output end of the fault detection circuit is connected with the signal generation circuit and is used for detecting the voltage of the corresponding low-voltage power line part and outputting a corresponding voltage signal;
the output end of the signal generating circuit is connected with the signal coupling circuit and is used for generating a signal with fixed frequency to be superposed with the received voltage signal and transmitting the superposed mixed signal to the signal coupling circuit;
the output end of the signal coupling circuit is connected with the low-voltage power line and is used for coupling the mixed signal to the low-voltage power line and transmitting the mixed signal to a signal receiving and band-pass filter of a next-stage system through the low-voltage power line;
the input end of the signal receiving and band-pass filter is connected with the low-voltage power line and used for receiving the mixed signal of the previous system and judging whether the low-voltage power line between the current system and the previous system has a fault or not by detecting the amplitude of the specified frequency signal;
the power supply circuit is used for supplying power to other circuits of the system.
2. The low voltage power failure detection and location system of claim 1 further comprising an alarm circuit connected to the signal receiving and band pass filter for alarming when a low voltage power line between the present stage system and the previous stage system fails.
3. The low voltage power fault detection and location system of claim 1 or 2, wherein the fault detection circuit comprises a second resistor, a third resistor, a voltage transformer, a first capacitor, a first resistor, a first operational amplifier (A), a first operational amplifier (B), a fifth resistor, a sixth resistor, a first diode, a second capacitor, a fourth resistor;
the low-voltage power line is connected with the input end of the voltage transformer through a second resistor; the positive output end of the voltage transformer is connected with one end of the third resistor and one end of the first capacitor, and the negative output end of the voltage transformer is connected with the other end of the third resistor and grounded; the other end of the first capacitor is connected with a first resistor and the non-inverting input end of the first operational amplifier A, and the other end of the first resistor is grounded; one end of the fifth resistor is grounded, and the other end of the fifth resistor is grounded; the output end of the first operational amplifier A is connected with the inverting input end through a sixth resistor and is connected with the non-inverting input end of the first operational amplifier B, and the output end of the first operational amplifier B is connected with the inverting input end and is connected with the positive pole of the first diode and the negative pole of the second diode; the negative pole of the first diode and the positive pole of the second diode are respectively connected to two parallel points of a parallel circuit consisting of the second capacitor and the fourth resistor; the anode of the second diode is also grounded; the junction of the first diode and the parallel circuit serves as the output of the fault detection and location circuit.
4. The low voltage power fault detection and location system of claim 1, wherein the signal receiving and band pass filter comprises a third capacitor, a sixth capacitor, a first inductor, a second inductor, a fifth capacitor, a first coupling transformer, a tenth resistor, a seventh capacitor, a fourth capacitor, an eleventh resistor, a fifteenth resistor, a second operational amplifier A, a seventh resistor, and an eighth resistor;
a series branch formed by connecting a third capacitor and a first inductor and a series branch formed by connecting a sixth capacitor and a second inductor are respectively connected to two ends of a fifth capacitor, the fifth capacitor is connected with a coil at the input end of the first coupling transformer in parallel, the synonym end of the output end of the first coupling transformer is grounded, and the synonym end is connected with one end of a tenth resistor; the other end of the tenth resistor is connected with the seventh capacitor and then grounded, and is connected with one end of the fourth capacitor and one end of the fifteenth resistor, the other end of the fifteenth resistor is connected with the output end of the second operational amplifier A, the other end of the fourth capacitor is connected with one end of the eleventh resistor and the non-inverting input end of the third operational amplifier A, and the other end of the eleventh resistor is grounded; the inverting input end of the second operational amplifier A is connected with one end of a seventh resistor and one end of an eighth resistor, the other end of the seventh resistor is grounded, and the other end of the eighth resistor is connected with the output end of the second operational amplifier A.
5. The low voltage power fault detection and location system of claim 2, wherein the alarm circuit includes a twenty-second resistor, a thirteenth capacitor, a twenty-fourth resistor, a twenty-fifth resistor, a twenty-first resistor, a second one-way thyristor, an alarm; one end of the twenty-second resistor is connected with the output end of the second A operational amplifier, and the other end of the twenty-second resistor is connected with the non-inverting input end of the third B operational amplifier; one end of the thirteenth capacitor is connected with the non-inverting input end of the third B operational amplifier, and the other end of the thirteenth capacitor is grounded; the inverting input end of the third B operational amplifier is connected with one end of a twenty-fourth resistor and one end of a twenty-fifth resistor, the other end of the twenty-fifth resistor is connected with a power supply, and the other end of the twenty-fourth resistor is grounded; the output end of the third B operational amplifier is connected with the control electrode of the second unidirectional silicon controlled rectifier, one end of the twenty-first resistor is connected with the power supply, the other end of the twenty-first resistor is connected to the anode of the second unidirectional silicon controlled rectifier, and the cathode of the second unidirectional silicon controlled rectifier is connected with the alarm.
6. The low voltage power fault detection and location system of claim 1, 2, 4 or 5, wherein the power supply circuit comprises an AC-DC circuit, a DC-DC battery charging module, an uninterruptible power supply module;
the DC-DC battery charging module comprises a fifth diode, a battery charging module and a battery pack; the anode of the fifth diode is connected with the output end of the AC-DC circuit, the cathode of the fifth diode is connected with the input end of the battery charging module, and the output end of the battery charging module is connected to the battery pack;
the uninterrupted power supply module comprises a solid-state relay, a first triode, a twenty-sixth resistor and an eighteenth capacitor; the output end of the AC-DC circuit is connected to the normally open end of the solid-state relay, the output end of the DC-DC battery charging module is connected to the normally closed end and the high potential end of the solid-state relay, the low potential end of the solid-state relay is connected with the collector of the first triode, the emitter of the first triode is grounded, the base of the first triode is connected with the twenty-sixth resistor and then connected to the output end of the AC-DC circuit, and the base of the first triode is connected with the eighteenth capacitor and then grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921366587.2U CN211180051U (en) | 2019-08-21 | 2019-08-21 | Low-voltage power failure detection positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921366587.2U CN211180051U (en) | 2019-08-21 | 2019-08-21 | Low-voltage power failure detection positioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211180051U true CN211180051U (en) | 2020-08-04 |
Family
ID=71823990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921366587.2U Active CN211180051U (en) | 2019-08-21 | 2019-08-21 | Low-voltage power failure detection positioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211180051U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412427A (en) * | 2019-08-21 | 2019-11-05 | 成都信息工程大学 | A kind of low-voltage power fault detection positioning system and fault detection method |
| CN112019829A (en) * | 2020-08-31 | 2020-12-01 | 常州倍速智能科技有限公司 | Small-size low-voltage high-performance output alarm device |
-
2019
- 2019-08-21 CN CN201921366587.2U patent/CN211180051U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412427A (en) * | 2019-08-21 | 2019-11-05 | 成都信息工程大学 | A kind of low-voltage power fault detection positioning system and fault detection method |
| CN112019829A (en) * | 2020-08-31 | 2020-12-01 | 常州倍速智能科技有限公司 | Small-size low-voltage high-performance output alarm device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211180051U (en) | Low-voltage power failure detection positioning system | |
| CN105870931A (en) | Automatic flexible load control system based on grid frequency and control method thereof | |
| CN107579591B (en) | Backup power system powered by alternating current power supply | |
| CN105137365A (en) | Three-phase power monitoring system and method | |
| CN109687571A (en) | Electric power 48V direct current supply control system | |
| CN105246187B (en) | Emergency-lighting system | |
| CN104269914A (en) | Wind-solar complementary control and inversion integrated machine | |
| CN201331555Y (en) | Power unit input open-phase detector of high-voltage inverter | |
| CN102914725A (en) | Medium-voltage power distribution network fault monitoring device | |
| CN104779694B (en) | The uninterrupted high frequency switch power of high energy efficiency in ATM | |
| CN106160182A (en) | A kind of be applicable to taking of overhead type indicating fault location terminal can circuit | |
| CN110412427A (en) | A kind of low-voltage power fault detection positioning system and fault detection method | |
| CN205724908U (en) | Flexible load self-control system based on mains frequency | |
| CN204046134U (en) | A kind of phase failure protector circuit | |
| CN105871295B (en) | A kind of feeder reactance voltage disturbance power-supply system | |
| CN206135521U (en) | High -speed monitoring system of commercial power of emergency lighting power | |
| CN205725557U (en) | A kind of feeder reactance voltage disturbance power-supply system | |
| CN213602408U (en) | Branch protection device for direct current system of transformer substation | |
| CN103780076A (en) | High-power switching power source | |
| CN209845413U (en) | Navigation aid lighting system with backup time | |
| CN108132426B (en) | Alarm detector for broken line of current transformer | |
| CN112086972A (en) | Intelligent operation and maintenance management device and method for backup power supply of power distribution terminal | |
| CN202929398U (en) | Switching power supply intelligent controller | |
| CN206684237U (en) | Power supply remote supervisory | |
| CN205610330U (en) | Intelligent fire control emergency power source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211216 Address after: 610000 No. 1, floor 8, unit 1, building 5, No. 399, west section of Fucheng Avenue, high tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan Patentee after: Sichuan TIANLIAN Xingtong Technology Co.,Ltd. Address before: No.24, Xuefu Road Section 1, Southwest Airport Economic Development Zone, Shuangliu District, Chengdu, Sichuan 610225 Patentee before: CHENGDU University OF INFORMATION TECHNOLOGY |