Network cable power supply equipment and monitoring system formed by network cable power supply equipment

Abstract

The utility model provides network cable power supply equipment and a monitoring system formed by the network cable power supply equipment, and relates to the technical field of monitoring systems. The Ethernet interface comprises a first pin serving as a TXD + pin, a second pin serving as a TXD-pin, a third pin serving as an RXD + pin, a sixth pin serving as an RXD-pin, a fourth pin serving as a master-output-slave-input signal line MOSI pin, a fifth pin serving as a master-input-slave-output signal line MISO pin, a seventh pin serving as a GND pin and an eighth pin serving as a DC-5V pin. The eighth pin is connected with a 5V simple energy storage power supply circuit, the 5V simple energy storage power supply circuit comprises a power grid monitoring circuit and a switch control circuit, the power grid monitoring circuit is respectively connected with a power grid and the switch control circuit, and the switch control circuit is connected with a 5V energy storage device and a monitoring camera. According to the utility model, the 5V energy storage device is used for replacing an uninterruptible power supply, and the Ethernet interface is used for supplying power to the monitoring camera, so that the cost performance is high, and the popularization is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of monitoring system technology, and in particular to a network cable power supply device and a monitoring system thereof. Background Technology

[0002] Surveillance systems are integrated security solutions primarily used to monitor specific areas and manage risks, widely applied in commercial, residential, transportation, and public safety sectors. A power outage in a surveillance system will cause the surveillance cameras to restart, affecting their lifespan. To ensure the cameras can function normally during power outages, uninterruptible power supplies (UPS) can be installed. However, UPSs are expensive and require a large current, while individual cameras draw a smaller current. Therefore, using an UPS to power surveillance cameras is not cost-effective, and most surveillance systems do not include UPSs, making the cameras vulnerable to power outages. Utility Model Content

[0003] This utility model provides a network cable power supply device and a monitoring system thereof, which solves the problem that the cost-effectiveness of uninterruptible power supply for powering surveillance cameras is very low. Most monitoring systems are not equipped with uninterruptible power supplies, which makes surveillance cameras susceptible to power outages.

[0004] This utility model provides a wired power supply device, including an Ethernet interface and a 5V simple energy storage power supply circuit. The Ethernet interface includes a first pin as a TX_D+ pin, a second pin as a TX_D- pin, a third pin as an RX_D+ pin, a sixth pin as an RX_D- pin, a fourth pin as a MOSI pin (master output / slave input signal line), a fifth pin as a MISO pin (master input / slave output signal line), a seventh pin as a GND pin, and an eighth pin as a DC-5V pin. The eighth pin is connected to the 5V simple energy storage power supply circuit. The 5V simple energy storage power supply circuit includes a power grid monitoring circuit and a switch control circuit. The power grid monitoring circuit is connected to the power grid and the switch control circuit, respectively. The switch control circuit is connected to a 5V energy storage device and a monitoring camera.

[0005] According to the present invention, a wired power supply device includes a power grid monitoring circuit comprising a transistor V14, a resistor R47, and a resistor R2. The base of the transistor V14 is connected to the power grid via the resistor R47 for detecting the power grid level. The emitter of the transistor V14 is grounded. The common terminal of the collector of the transistor V14 and the resistor R2 is connected to the switch control circuit. The other end of the resistor R2 is connected to the 5V energy storage device.

[0006] According to the present invention, a network cable power supply device is provided, wherein the switch control circuit includes an amplification unit, a switching unit, and a voltage regulator unit. The input terminal of the amplification unit is connected to the common terminal of the collector of the transistor V14 and the resistor R2. The output terminal of the amplification unit is connected to the control terminal of the switching unit. The switching unit is connected to the voltage regulator unit, and the voltage regulator unit is used to output a stable voltage to the monitoring camera.

[0007] According to the present invention, a network cable power supply device is provided, wherein the amplification unit includes a transistor V13, a resistor R1 and a resistor R3. One end of the resistor R1 is connected to the collector of the transistor V14 and the common terminal of the resistor R2, and the other end is connected to the resistor R3 and the base of the transistor V13. The other end of the resistor R3 is grounded, the emitter of the transistor V13 is grounded, and the collector is connected to the switching unit.

[0008] According to the present invention, a network cable power supply device is provided, wherein the switching unit includes a resistor R4 and a switching transistor V12. The source of the switching transistor V12 and the resistor R4 are both connected to the 5V energy storage device, the gate of the switching transistor V12 is connected to the other end of the resistor R4, and the drain of the switching transistor V12 is connected to the voltage regulator unit.

[0009] According to the present invention, a network cable power supply device is provided, wherein the voltage regulation unit includes a Zener diode and a filter capacitor, and the switching unit is connected to the common terminal of the Zener diode and the filter capacitor.

[0010] According to the present invention, a network cable power supply device is provided, wherein the filter capacitor includes capacitors C1 and C2 connected in parallel.

[0011] According to the present invention, in a wired power supply device, the AD_CONNECT pin of the surveillance camera is connected to the input terminal of the power grid monitoring circuit.

[0012] This utility model also provides a monitoring system, including a monitoring camera, a monitoring board, a central office device, and a network cable power supply device as described in any one of the above, wherein the network cable power supply device is connected to the monitoring camera, the monitoring board, and the central office device respectively.

[0013] According to the monitoring system provided by this utility model, the monitoring board is also connected to a cloud server via a 4G / 5G communication circuit.

[0014] This utility model provides a wired power supply device and a monitoring system thereof. The wired power supply device includes an Ethernet interface and a 5V simple energy storage power supply circuit. The Ethernet interface includes a first pin as a TX_D+ pin, a second pin as a TX_D- pin, a third pin as an RX_D+ pin, a sixth pin as an RX_D- pin, a fourth pin as a MOSI pin (master output / slave input signal line), a fifth pin as a MISO pin (master input / slave output signal line), a seventh pin as a GND pin, and an eighth pin as a DC-5V pin. The eighth pin is connected to the 5V simple energy storage power supply circuit. The 5V simple energy storage power supply circuit includes a power grid monitoring circuit and a switch control circuit. The power grid monitoring circuit is connected to the power grid and the switch control circuit, respectively. The switch control circuit is connected to the 5V energy storage device and the monitoring camera. This utility model replaces the uninterruptible power supply with a low-cost, small-size, low-current 5V energy storage device and supplies power to the monitoring camera through the Ethernet interface, resulting in a high cost-performance ratio and avoiding the vulnerability of the monitoring camera to power outages. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the network cable power supply device provided by this utility model.

[0017] Figure 2 This is a circuit diagram of the network cable power supply device provided by this utility model.

[0018] Figure 3 This is a schematic diagram of the monitoring system provided by this utility model.

[0019] Figure 4 This is the circuit schematic diagram of the monitoring system provided by this utility model.

[0020] In the diagram, 100 is the network cable power supply equipment, 110 is the Ethernet interface, 120 is the 5V simple energy storage power supply circuit, 200 is the surveillance camera, 300 is the monitoring board, and 400 is the central office equipment. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Figure 1 This is a schematic diagram of the network cable power supply device provided by this utility model. Figure 2 This is a circuit diagram of the network cable power supply device provided by this utility model, such as... Figure 1 and Figure 2 As shown, this utility model provides a wired power supply device 100, including an Ethernet interface 110 and a 5V simple energy storage power supply circuit 120. The Ethernet interface 110 includes a first pin as a TX_D+ pin, a second pin as a TX_D- pin, a third pin as an RX_D+ pin, a sixth pin as an RX_D- pin, a fourth pin as a MOSI pin (master-input-slave-output signal line), a fifth pin as a MISO pin (master-input-slave-output signal line), a seventh pin as a GND pin, and an eighth pin as a DC-5V pin. The eighth pin is connected to the 5V simple energy storage power supply circuit 120. The 5V simple energy storage power supply circuit 120 includes a power grid monitoring circuit and a switch control circuit. The power grid monitoring circuit is connected to the power grid and the switch control circuit, respectively. The switch control circuit is connected to a 5V energy storage device and a monitoring camera 200. The 5V energy storage device can be an energy storage capacitor or a small battery, which is smaller in size, cost, and current than an uninterruptible power supply.

[0023] The TX_D+ and TX_D- pins transmit differential signals outwards. The TX_D+ pin transmits a positive differential signal to the receiving end (positive direction), and the TX_D- pin transmits a negative differential signal to the receiving end (negative direction). The RX_D+ and RX_D- pins receive differential signals. The RX_D+ pin receives the positive signal sent by the receiving end's TX+, and the RX_D- pin receives the negative signal sent by the receiving end's TX-. The MOSI pin of the master-slave input / output signal line is the data signal line output from the battery / power bank control board (the control board of the 5V simple energy storage power supply circuit) to the monitoring camera 200. The MISO pin of the master-slave output signal line is the input data signal line received by the battery / power bank control board from the external camera. The GND pin provides a reference ground for the external communication module, and the DC-5V pin supplies power to the monitoring camera 200 when power is off.

[0024] Ethernet interface 110 can be a 100 Mbps Ethernet interface 110. This utility model defines four 100 Mbps Ethernet buses according to the standard and uses four buses as power supply pins for PoE. When the power grid is supplying power normally, it communicates with the computer room through this bus to transmit monitoring images. The other four unused buses of the 100 Mbps Ethernet interface 110 are defined as MOSI, MISO, POWER (DC-5V) and GND respectively, so that the spare pins of the Ethernet interface 110 can provide uninterrupted power to the monitoring camera 200.

[0025] As an optional embodiment, the power grid monitoring circuit includes a transistor V14, a resistor R47, and a resistor R2. The base of the transistor V14 is connected to the power grid via the resistor R47 to detect the power grid level. The emitter of the transistor V14 is grounded. The collector of the transistor V14 and the common terminal of the resistor R2 are connected to the switch control circuit. The other end of the resistor R2 is connected to the 5V energy storage device.

[0026] As an optional embodiment, the switch control circuit includes an amplification unit, a switching unit, and a voltage regulator unit. The input terminal of the amplification unit is connected to the collector of the transistor V14 and the common terminal of the resistor R2. The output terminal of the amplification unit is connected to the control terminal of the switching unit. The switching unit is connected to the voltage regulator unit, which is used to output a stable voltage to the surveillance camera 200.

[0027] As an optional embodiment, the amplification unit includes a transistor V13, a resistor R1, and a resistor R3. One end of the resistor R1 is connected to the collector of the transistor V14 and the common terminal of the resistor R2, and the other end is connected to the resistor R3 and the base of the transistor V13. The other end of the resistor R3 is grounded, the emitter of the transistor V13 is grounded, and the collector is connected to the switching unit.

[0028] As an optional embodiment, the switching unit includes a resistor R4 and a switching transistor V12. The source of the switching transistor V12 and the resistor R4 are both connected to the 5V energy storage device. The gate of the switching transistor V12 is connected to the other end of the resistor R4, and the drain of the switching transistor V12 is connected to the voltage regulator unit.

[0029] As an optional embodiment, the voltage regulator unit includes a Zener diode and a filter capacitor, and the switching unit is connected to the common terminal of the Zener diode and the filter capacitor. Optionally, the filter capacitor includes capacitors C1 and C2 connected in parallel.

[0030] As an optional embodiment, the AD_CONNECT pin of the surveillance camera 200 is connected to the input terminal of the power grid monitoring circuit.

[0031] The working principle of the network cable power supply device 100 provided by this utility model is as follows:

[0032] The EX-POWER power supply is an external mains power source. If the external mains power is working normally, the base of transistor V14 is at a high level, the base of transistor V13 is at a low level, the MOSFET V12 is not conducting, and the POWER (DC-5V) is not supplying power. The power supply VOUT for the surveillance camera 200 is supplied by the mains power EX-POWER through D1. When the mains power is off, EX-POWER is at a low level, the base of transistor V13 is at a low level and not conducting, the base of MOSFET V12 is at a high level, and the gate of MOSFET V12 is at a low level and conducting. The board's power supply VOUT is then supplied to the surveillance camera 200 by the POWER (DC-5V).

[0033] It is understandable that this utility model replaces the uninterruptible power supply with a low-cost, small-size, low-current 5V energy storage device, and then supplies power to the surveillance camera 200 through the Ethernet interface 110, which has a high cost performance and avoids the surveillance camera 200 being easily affected by power outages.

[0034] The monitoring system provided by this utility model is described below. The monitoring system described below can be referred to in correspondence with the network cable power supply equipment 100 described above.

[0035] Figure 3 This is a schematic diagram of the monitoring system provided by this utility model. Figure 4 This is the circuit schematic diagram of the monitoring system provided by this utility model, such as... Figure 3 and Figure 4 As shown, this utility model also provides a monitoring system, including a monitoring camera 200, a monitoring board 300, a central office equipment 400, and a network cable power supply device 100 as described in any one of the above. The network cable power supply device 100 is connected to the monitoring camera 200, the monitoring board 300, and the central office equipment 400 respectively.

[0036] As one embodiment, the monitoring board 300 is also connected to a cloud server via a 4G / 5G communication circuit. The AD interface of the monitoring camera 200 chip samples the power supply of the base of transistor V14, with the signal line being AD_CONNECT. When the level of the AD_CONNECT pin is detected to be low, a power outage can be detected immediately, and the power outage information is sent to the monitoring board 300 via MOSI and MISO. The monitoring board 300 sends the relevant information to the cloud server via the board's 4G / 5G module. At the same time, the monitoring camera 200 sends the compressed monitoring video to the monitoring board 300 via the MOSI and MISO pins. The control board transmits the monitoring video to the cloud server via the 4G / 5G communication circuit.

[0037] As one embodiment, the Ethernet cable power supply device 100 includes an Ethernet interface 110 and a 5V simple energy storage power supply circuit 120. The Ethernet interface 110 includes a first pin as a TX_D+ pin, a second pin as a TX_D- pin, a third pin as an RX_D+ pin, a sixth pin as an RX_D- pin, a fourth pin as a master-output-slave-in signal line MOSI pin, a fifth pin as a master-in-slave-output signal line MISO pin, a seventh pin as a GND pin, and an eighth pin as a DC-5V pin. The eighth pin is connected to the 5V simple energy storage power supply circuit 120. The 5V simple energy storage power supply circuit 120 includes a power grid monitoring circuit and a switch control circuit. The power grid monitoring circuit is connected to the power grid and the switch control circuit, respectively. The switch control circuit is connected to the 5V energy storage device and the monitoring camera 200.

[0038] It can be seen that the interface of the network cable power supply device 100 provided by this utility model can be divided into three types of functional interfaces, including Ethernet functional interface, power interface and bus interface. The Ethernet functional interface uses pins 1, 2, 3 and 6 of Ethernet interface 110. When the power grid is working normally, it performs video data transmission and communication, and can also use these 4 pins to provide PoE power to the monitoring camera 200. The power interface uses pins 7 and 8 of Ethernet interface 110. When the power grid is interrupted, it supplies power to the monitoring camera 200 from a 5V energy storage device (such as a battery, capacitor, etc.) to ensure that the monitoring camera 200 works normally when the power grid is interrupted. The bus interface uses pins 4 and 5 of Ethernet interface 110. When the power grid is interrupted, it communicates and transmits data with the monitoring camera 200, and transmits the monitoring data to the cloud network through the 5G network via the control board.

[0039] As one embodiment, the power grid monitoring circuit includes a transistor V14, a resistor R47, and a resistor R2. The base of the transistor V14 is connected to the power grid via the resistor R47 to detect the power grid level. The emitter of the transistor V14 is grounded. The collector of the transistor V14 and the common terminal of the resistor R2 are connected to the switch control circuit. The other end of the resistor R2 is connected to the 5V energy storage device.

[0040] As an example, the switch control circuit includes an amplification unit, a switching unit, and a voltage regulator unit. The input terminal of the amplification unit is connected to the common terminal of the collector of the transistor V14 and the resistor R2. The output terminal of the amplification unit is connected to the control terminal of the switching unit. The switching unit is connected to the voltage regulator unit, which is used to output a stable voltage to the surveillance camera 200.

[0041] As an example, the amplification unit includes a transistor V13, a resistor R1, and a resistor R3. One end of the resistor R1 is connected to the collector of the transistor V14 and the common terminal of the resistor R2, and the other end is connected to the resistor R3 and the base of the transistor V13. The other end of the resistor R3 is grounded, the emitter of the transistor V13 is grounded, and the collector is connected to the switching unit.

[0042] As one embodiment, the switching unit includes a resistor R4 and a switching transistor V12. The source of the switching transistor V12 and the resistor R4 are both connected to the 5V energy storage device. The gate of the switching transistor V12 is connected to the other end of the resistor R4, and the drain of the switching transistor V12 is connected to the voltage regulator unit.

[0043] As one embodiment, the voltage regulation unit includes a Zener diode and a filter capacitor, and the switching unit is connected to the common terminal of the Zener diode and the filter capacitor.

[0044] As one embodiment, the filter capacitor includes capacitors C1 and C2 connected in parallel.

[0045] As an example, the AD_CONNECT pin of the surveillance camera 200 is connected to the input terminal of the power grid monitoring circuit.

[0046] In summary, this invention can provide uninterrupted power to 200 surveillance cameras in the event of a power outage, while maintaining low cost, and can also transmit the surveillance video to a cloud server. It also enables power monitoring and alarm functions, sending power outage alarm messages to users after a power outage, allowing them to be aware of the outage and respond and handle it promptly.

[0047] It should be noted that the monitoring system provided by this utility model includes the network cable power supply device 100 described in any of the above embodiments, and has the technical effects corresponding to the network cable power supply device 100. This embodiment will not elaborate on these effects.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A network cable power supply device, characterized in that, The device includes an Ethernet interface and a 5V simple energy storage power supply circuit. The Ethernet interface includes a first pin as a TX_D+ pin, a second pin as a TX_D- pin, a third pin as an RX_D+ pin, a sixth pin as an RX_D- pin, a fourth pin as a master-output / slave-in signal line (MOSI pin), a fifth pin as a master-in / slave-output signal line (MISO pin), a seventh pin as a GND pin, and an eighth pin as a DC-5V pin. The eighth pin is connected to the 5V simple energy storage power supply circuit. The 5V simple energy storage power supply circuit includes a power grid monitoring circuit and a switch control circuit. The power grid monitoring circuit is connected to the power grid and the switch control circuit, respectively. The switch control circuit is connected to the 5V energy storage device and a monitoring camera.

2. The network cable power supply equipment according to claim 1, characterized in that, The power grid monitoring circuit includes a transistor V14, a resistor R47, and a resistor R2. The base of the transistor V14 is connected to the power grid via the resistor R47 to detect the power grid level. The emitter of the transistor V14 is grounded. The common terminal of the collector of the transistor V14 and the resistor R2 is connected to the switch control circuit. The other end of the resistor R2 is connected to the 5V energy storage device.

3. The network cable power supply equipment according to claim 2, characterized in that, The switching control circuit includes an amplification unit, a switching unit, and a voltage regulator unit. The input terminal of the amplification unit is connected to the common terminal of the collector of the transistor V14 and the resistor R2. The output terminal of the amplification unit is connected to the control terminal of the switching unit. The switching unit is connected to the voltage regulator unit, which is used to output a stable voltage to the surveillance camera.

4. The network cable power supply equipment according to claim 3, characterized in that, The amplification unit includes a transistor V13, a resistor R1, and a resistor R3. One end of the resistor R1 is connected to the collector of the transistor V14 and the common terminal of the resistor R2, and the other end is connected to the resistor R3 and the base of the transistor V13. The other end of the resistor R3 is grounded, the emitter of the transistor V13 is grounded, and the collector is connected to the switching unit.

5. The network cable power supply equipment according to claim 3, characterized in that, The switching unit includes a resistor R4 and a switching transistor V12. The source of the switching transistor V12 and the resistor R4 are both connected to the 5V energy storage device. The gate of the switching transistor V12 is connected to the other end of the resistor R4. The drain of the switching transistor V12 is connected to the voltage regulator unit.

6. The network cable power supply device according to any one of claims 3-5, characterized in that, The voltage regulation unit includes a Zener diode and a filter capacitor, and the switching unit is connected to the common terminal of the Zener diode and the filter capacitor.

7. The network cable power supply equipment according to claim 6, characterized in that, The filter capacitors include capacitors C1 and C2 connected in parallel.

8. The network cable power supply equipment according to claim 1, characterized in that, The AD_CONNECT pin of the surveillance camera is connected to the input terminal of the power grid monitoring circuit.

9. A monitoring system, characterized in that, It includes a surveillance camera, a monitoring board, a central office equipment, and a network cable power supply device as described in any one of claims 1-8, wherein the network cable power supply device is connected to the surveillance camera, the monitoring board, and the central office equipment, respectively.

10. The monitoring system according to claim 9, characterized in that, The monitoring board is also connected to a cloud server via a 4G / 5G communication circuit.

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