AU2021105557A4 - Self-powered monitoring device during power failure - Google Patents

Self-powered monitoring device during power failure Download PDF

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Publication number
AU2021105557A4
AU2021105557A4 AU2021105557A AU2021105557A AU2021105557A4 AU 2021105557 A4 AU2021105557 A4 AU 2021105557A4 AU 2021105557 A AU2021105557 A AU 2021105557A AU 2021105557 A AU2021105557 A AU 2021105557A AU 2021105557 A4 AU2021105557 A4 AU 2021105557A4
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AU
Australia
Prior art keywords
relay
alternating current
circuit
normally
power supply
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Ceased
Application number
AU2021105557A
Inventor
Yuanjie Li
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Individual
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Individual
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Priority to AU2021105557A priority Critical patent/AU2021105557A4/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source

Abstract

The invention discloses self-powered monitoring device during power failure, which belongs to the field of monitoring devices and comprises alternating current working circuit and storage battery backup working circuit, wherein, the alternating current working circuit comprises alternating current power supply, host computer, camera, display, normally open relay and switch. The storage battery backup working circuit includes battery, direct current relay, a charging overload protector and an inverter. Two working circuits are switched by normally closed relay, and the coil loop of normally closed relay is connected in parallel between the neutral wire and the live line of AC power supply. This device can automatically switch to the battery power supply when the external AC power supply is cut off, thus realizing uninterrupted monitoring. 1/1 FIGURES 117 3 Figure 1

Description

1/1
FIGURES
117
3
Figure 1
Self-powered monitoring device during power failure
TECHNICAL FIELD The invention relates to monitoring device, in particular to self-powered monitoring device during power failure.
BACKGROUND At present, there are many kinds of monitors in the market, but they all need to be connected to external AC power supply. If the power supply stops, the monitors does not work, resulting in interruption of monitoring.
SUMMARY The purpose of the present invention is to provide self-powered monitoring device during power failure which comprises alternating current working circuit and battery backup working circuit, wherein, the alternating current working circuit comprises alternating current power supply, host, camera, display, normally open relay and switch. The battery backup working circuit includes battery, direct current relay, a charging overload protector and an inverter. Two working circuits are switched by normally closed relay, and the coil loop of normally closed relay is connected in parallel between the neutral wire and the live line of AC power supply. Preferably, when the alternating current power is supplied and the switch is turned on, the Alternating current working circuit works, the coil circuit of the relay is energized, the normally closed relay of its output circuit is disconnected, and battery backup working circuit does not work. When the alternating current power is cut off or the switch is turned off, the coil circuit of the normally closed relay loses power, and the normally closed relay of its output circuit returns to close to conduct the positive electrode of the battery, and the battery backup working circuit starts to work. Preferably, coil circuits of normally-open relay and normally-closed relay are connected in parallel between neutral wire and live line of alternating current power supply. One end of output circuit of normally-open relay is connected to neutral wire and the other end is connected to host computer. One end of output circuit of normally-closed relay is connected to positive pole of storage battery, and the other end is connected to E end of coil circuit of direct current relay. G end of output loop of direct current relay is connected with Q end of inverter, and H end of output loop and F end of coil loop are connected with negative pole of storage battery. A terminal of the charging overload protector is connected to the positive electrode of the storage battery, B terminal is connected in parallel to the negative electrode of the storage battery, C terminal is connected in parallel to the live wire, D terminal is connected to the I interface of the host computer, and J interface of the host computer is connected in parallel to the live wire. The M interface and N interface of that host are connected with the camera, and the K interface and I interface of the host are connected with the display. The camera is also electrically connected with the display. The input R end of the inverter is connected with the negative electrode of the storage battery. Output terminals 0 and P of the inverter are respectively connected with I and J interfaces of the host computer and S and T terminals of the display. The invention has the following beneficial effects: when the external alternating current power supply is cut off, it can automatically switch to the battery storage for power supply, so that the monitoring is uninterrupted. Charging overload protector which charges the storage battery when the alternating current working circuit works and stops charging when the direct current storage battery is in saturation; Inverter can convert direct current power of battery into 220V AC power when battery works instead of working circuit, and provide it to host computer and display.
BRIEF DESCRIPTION OF THE FIGURES Fig. 1 is a circuit structure diagram of the present invention; Reference number: Alternating current working circuit V1, storage battery backup working circuit V2, alternating current power supply 1, host computer 2, camera 3, display 4, normally open relay 5, switch 6, storage battery 7, direct current relay 8, charging overload protector 9, inverter 10, normally closed relay 11, neutral wire 12, live line 13.
DESCRIPTION OF THE INVENTION Referring to Fig. 1, an embodiment of the present invention is proposed, which includes alternating current working circuit V1 and battery backup working circuit V2, wherein the alternating current working circuit includes analternating current power supply 1, host computer 2, camera 3, display 4, normally open relay 5 and switch 6; The storage battery replacement circuit includes battery 7, DC relay 8, charging overload protector 9 and inverter 10. The two working circuits are switched by the normally closed relay 11, and the coil loop of the normally closed relay 11 is connected in parallel between the neutral wire 12 and the live line 13 of the AC power supply. When the alternating current power supply 1 is turned on and the switch 6 is turned on, the alternating current working circuit V1 works, the coil circuit of the normally closed relay 11 is energized, the normally closed contact of its output circuit is turned off, and the battery backup working circuit V2 does not work. When the alternating current power is cut off 2 or the switch 6 is turned off, the coil circuit of the normally closed relay 11 loses power, and the normally closed contact of its output circuit returns to close to conduct the positive electrode of the battery, and the battery backup working circuit V2 starts to work. Coil circuit of normally open relay 5 and coil circuit of normally closed relay 11 are connected in parallel between neutral line and live line of alternating current power supply 1. One end of output circuit of normally open relay 5 is connected to neutral line 12 and the other end is connected to host computer 2. One end of output circuit of normally closed relay 11 is connected to positive pole of storage battery 7 and the other end is connected to E end of coil circuit of direct current relay 8. Output loop g of direct current relay 8 is connected to input Q of inverter 10, and output loop H and coil loop F are connected to negative pole of storage battery 7. The terminal of the charging overload protector 9 is connected to the positive pole of the storage battery 7. Its B terminal is connected in parallel with the negative pole of the storage battery 7, its C terminal is connected in parallel with the live wire 13, its D terminal is connected with the I interface of the host computer 2, and its J interface is connected in parallel with the live wire. The m interface and n interface of the host computer 2 are connected with the camera 3, and the K interface and I interface of the host computer 2 are connected with the display 4. The camera 3 and the display 4 are also electrically connected; The input r end of the inverter 10 is connected to the negative electrode of the storage battery 7. Output terminals 0 and P of the inverter 10 are respectively connected to I and j interfaces of the host computer 2 and S and T terminals of the display. When the switch 6 is pressed down, the neutral line 12 of the 220V alternating current power supply leads to the coil circuit of the normally open relay 5, the relay coil generates a magnetic field, the normally open contact is closed, the live wire is conducted to the 220V inverter 10, the alternating current is processed by the host computer 2 and converted into 12V direct current to connect with the camera 3, which transmits the captured data to the display 4 and saves it. When the switch 6 is pressed down, the coil circuit of the normally closed relay 11 is simultaneously led. Due to the conduction of the zero line of the coil circuit, a magnetic field is generated, the normally closed contact is opened, and the coil circuit to the direct current relay 8 is cut off. The other power supply is connected to the charging overload protector 6 due to the conduction of the relay 4, and the charging is stopped when the direct current storage battery 7 is in saturation. When the storage battery 7 is lower than 12V, the charging overload protector 9 works to charge the battery. When alternating current power is cut off, the host computer 2 stops working because the coil circuit of normally-open relay 5 is cut off, and the normally-open contact returns. At the same time, the normally-closed relay 11 turns on the positive electrode of the battery and connects to the coil circuit of DC relay 8. The coil circuit turns on to generate a magnetic field, the normally-open contact is closed, and the power supply is turned on to 12V inverter 10. After being processed by the inverter 10, it is converted into 220V alternating current, which is connected to the host computer 2 and the display 4. The host computer 2 works, the display 4 works due to the conduction of alternating current, and the display 4 is connected to the camera 3, which works, transmitting the captured data to the display 4 and saving it. The 220V inverter power supply of 12V inverter turns on the charging overload protector 9 at the same time, and the charging overload protector 9 works normally due to power-on. When using direct current, the charging overload protector can prevent the battery from being damaged by charging the battery for a long time in a saturated state. When the alternating current power of the working power supply is cut off, the normally closed relay 11 turns on the positive electrode of the storage battery, connects with the 12V inverter 10, and is converted into 220V alternating current by the inverter, which turns on the charging overload protector 9 to work. When alternating current is turned on again, the coil loop of normally open relay 5 is turned on, the normally open contact is closed, the live wire is turned on to host computer 2, and host computer 2 works. Normally closed relay 11 is also turned on by the coil loop, and the coil generates a magnetic field. The normally closed contact is turned on, and the positive pole of DC power source to 12V inverter 10 is cut off, and inverter 10 stops working. The charging overload protector 9 works normally due to the conduction of the AC power source.

Claims (3)

  1. THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS: 1. Self-powered monitoring device during power failure is characterized in comprising alternating current working circuit and battery backup working circuit, wherein, the alternating current working circuit comprises alternating current power supply, host, camera, display, normally open relay and switch. The battery backup working circuit includes battery, direct current relay, a charging overload protector and an inverter. Two working circuits are switched by normally closed relay, and the coil loop of normally closed relay is connected in parallel between the neutral wire and the live line of AC power supply.
  2. 2. Self-powered monitoring device during power failure, according to claim 1, is characterized in that when the alternating current power is supplied and the switch is turned on, the Alternating current working circuit works, the coil circuit of the relay is energized, the normally closed relay of its output circuit is disconnected, and battery backup working circuit does not work. When the alternating current power is cut off or the switch is turned off, the coil circuit of the normally closed relay loses power, and the normally closed relay of its output circuit returns to close to conduct the positive electrode of the battery, and the battery backup working circuit starts to work.
  3. 3. Self-powered monitoring device during power failure, according to claim 1, is characterized in that coil circuits of normally-open relay and normally-closed relay are connected in parallel between neutral wire and live line of alternating current power supply. One end of output circuit of normally-open relay is connected to neutral wire and the other end is connected to host computer. One end of output circuit of normally-closed relay is connected to positive pole of storage battery, and the other end is connected to E end of coil circuit of direct current relay. G end of output loop of direct current relay is connected with Q end of inverter, and H end of output loop and F end of coil loop are connected with negative pole of storage battery. A terminal of the charging overload protector is connected to the positive electrode of the storage battery, B terminal is connected in parallel to the negative electrode of the storage battery, C terminal is connected in parallel to the live wire, D terminal is connected to the I interface of the host computer, and J interface of the host computer is connected in parallel to the live wire. The M interface and N interface of that host are connected with the camera, and the K interface and I interface of the host are connected with the display. The camera is also electrically connected with the display. The input R end of the inverter is connected with the negative electrode of the storage battery. Output terminals 0 and P of the inverter are respectively connected with I and J interfaces of the host computer and S and T terminals of the display.
    FIGURES 1/1
    Figure 1
AU2021105557A 2021-08-16 2021-08-16 Self-powered monitoring device during power failure Ceased AU2021105557A4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2021105557A AU2021105557A4 (en) 2021-08-16 2021-08-16 Self-powered monitoring device during power failure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2021105557A AU2021105557A4 (en) 2021-08-16 2021-08-16 Self-powered monitoring device during power failure

Publications (1)

Publication Number Publication Date
AU2021105557A4 true AU2021105557A4 (en) 2021-10-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
AU2021105557A Ceased AU2021105557A4 (en) 2021-08-16 2021-08-16 Self-powered monitoring device during power failure

Country Status (1)

Country Link
AU (1) AU2021105557A4 (en)

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