CN104734329B - Power supply system of power consumption monitoring equipment - Google Patents

Abstract

The invention discloses a power supply system of power consumption monitoring equipment. This power supply system of power consumption monitoring facilities includes: the main power supply interface is arranged in a power supply system of the power consumption monitoring equipment and is used for connecting an external power supply for supplying power to the power supply system of the power consumption monitoring equipment; the standby power supply is arranged in the power supply system of the power consumption monitoring equipment, is connected with the power consumption load of the power supply system of the power consumption monitoring equipment and is connected with the main power supply interface; and the processor is respectively connected with the main power interface and the standby power and is used for controlling the standby power to supply power to the power load of the power supply system of the power consumption monitoring equipment when the fact that the external power supply stops supplying power is detected. The invention solves the problem that the power supply system of the electricity utilization monitoring equipment in the related art cannot work normally under the condition that the external power supply is powered off.

Description

Power supply system for electricity monitoring equipment

technical field

The invention relates to the field of monitoring, in particular to a power supply system for electricity monitoring equipment.

Background technique

In the power supply system of key user electricity monitoring equipment, the working power supply of the monitoring equipment itself is powered by external power supply, but when the external power supply is out of power, the backup power conversion power supply technology of the monitoring device can be used to solve the problem that the key user power supply cannot be monitored. working conditions, and problems with the monitoring device itself not working.

At present, the use of key user electricity monitoring terminals can accurately grasp the electricity consumption of important electricity users, collect various electricity parameters and fault information in real time, improve the safety and reliability of power supply and distribution system operation, and improve service quality.

During the use of key user power consumption monitoring terminals, due to the external power supply, when the user loses power, the collection terminal stops working, so on the one hand, the power failure information cannot be collected, and on the other hand, the collection terminal cannot work to transmit the situation Return to the monitoring center. In order to solve this problem, a special research and development monitoring device backup power conversion power supply technology to solve the problem.

At present, the main collection terminals mainly use smart meter technology, which can collect information such as voltage and current, but cannot do it: work with its own power supply. It can only work by relying on the external power supply on site. If the external power supply fails, the acquisition equipment cannot work, and the information of "user power failure" cannot be monitored.

Aiming at the problem in the related art that the power supply system of the power consumption monitoring equipment cannot work normally when the external power supply fails, no effective solution has been proposed yet.

Contents of the invention

The main purpose of the present invention is to provide a power supply system for electricity consumption monitoring equipment, so as to solve the problem that the power supply system of the electricity consumption monitoring equipment cannot work normally when the external power supply fails.

In order to achieve the above object, according to one aspect of the present invention, a power supply system for a power consumption monitoring device is provided. The power supply system of the power consumption monitoring equipment includes: a main power supply interface, which is set in the power supply system of the power consumption monitoring equipment, and is used to connect the external power supply for the power supply system of the power consumption monitoring equipment; a backup power supply, which is set in the power supply system of the power consumption monitoring equipment. In the power supply system of the power consumption monitoring equipment, it is connected to the power load of the power supply system of the power consumption monitoring equipment, and is connected to the main power supply interface; the processor is connected to the main power supply interface and the main power supply interface The backup power supplies are connected to each other, and are used to control the backup power supply to supply power to the load of the power supply system of the power monitoring device when it is detected that the external power supply stops supplying power; the charging circuit is connected to the main between the power interface and the backup power supply, wherein the processor is connected to the charging circuit, and is used to control the charging circuit to supply power to the backup power supply through the external power supply when detecting that the external power supply Mains powered.

Further, the power supply system of the electricity monitoring equipment also includes:

The power supply monitoring circuit is connected with the main power supply interface and is used to monitor whether the power supply of the external power supply is normal.

Further, the power supply monitoring circuit is also used to detect whether the power supply of the external power supply reaches a preset power supply standard.

Further, the processor is respectively connected to the charging circuit and the power supply monitoring circuit, and is used to control the The charging circuit supplies power to the standby power supply through the external power supply.

Further, the power supply system of the electricity monitoring equipment also includes:

The charging management circuit is connected with the charging circuit and is used for detecting whether the charging of the charging circuit is completed.

Further, the processor is respectively connected to the charging management circuit and the charging circuit, and is used for controlling the charging circuit to stop supplying power after the charging management circuit detects that the charging of the charging circuit is completed.

According to the present invention, the power supply system comprising the following parts is adopted, the main power supply interface is arranged in the power supply system of the power consumption monitoring equipment, and is used to connect the external power supply system of the power consumption monitoring equipment Power supply; backup power supply, set in the power supply system of the power consumption monitoring equipment, connected with the power load of the power supply system of the power consumption monitoring equipment, and connected with the main power supply interface; processor, connected with The main power supply interface is connected to the backup power supply respectively, and is used to control the backup power supply to supply power to the load of the power supply system of the power monitoring device when it is detected that the external power supply stops supplying power; circuit, connected between the main power supply interface and the backup power supply, wherein the processor is connected to the charging circuit, and is used to control the charging circuit to pass through the The external power supply supplies power to the backup power supply. It solves the problem in the related art that the power supply system of the power consumption monitoring equipment cannot work normally when the external power supply is cut off.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

FIG. 1 is a schematic diagram of a power supply system of a power consumption monitoring device according to a first embodiment of the present invention; and

Fig. 2 is a schematic diagram of a power supply system of a power usage monitoring device according to a second embodiment of the present invention.

detailed description

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

Fig. 1 is a schematic diagram of a power supply system of a power consumption monitoring device according to a first embodiment of the present invention.

As shown in Figure 1, the power supply system of the electricity monitoring equipment includes:

The main power supply interface is set in the power supply system of the power consumption monitoring equipment, and is used to connect the external power supply for the power supply system of the power consumption monitoring equipment.

The backup power supply is set in the power supply system of the power consumption monitoring device, connected with the power load of the power supply system of the power consumption monitoring device, and connected with the main power supply interface.

A processor, connected to the main power supply interface and the backup power supply respectively, configured to control the power consumption of the backup power supply to the power supply system of the power consumption monitoring device when it is detected that the external power supply stops supplying power power supply to the load.

A charging circuit, connected between the main power supply interface and the backup power supply, wherein the processor is connected to the charging circuit, and is used to control the charging circuit when it is detected that the external power supply is powered The backup power supply is powered by the external power supply.

According to the power supply system of the power consumption monitoring equipment of the first embodiment of the present invention, the power supply system of the power consumption monitoring equipment comprising the following parts is adopted, and the main power supply interface is set in the power supply system of the power consumption monitoring equipment for connecting The external power supply supplied by the power supply system of the electricity consumption monitoring equipment; the backup power supply is set in the power supply system of the electricity consumption monitoring equipment, is connected with the electric load of the power supply system of the electricity consumption monitoring equipment, and is connected to the The main power supply interface is connected; the processor is respectively connected with the main power supply interface and the backup power supply, and is used to control the backup power supply to the power supply when it is detected that the external power supply stops supplying power. The electric load of the power supply system of the monitoring equipment is powered; the charging circuit is connected between the main power supply interface and the backup power supply, wherein the processor is connected to the charging circuit for detecting the When the external power supply is used to supply power, the charging circuit is controlled to supply power to the backup power supply through the external power supply. It solves the problem in the related art that the power supply system of the power consumption monitoring equipment cannot work normally when the external power supply is cut off.

In one embodiment of the present invention, the power supply system of the power consumption monitoring device also includes:

The power supply monitoring circuit is connected with the main power supply interface and is used to monitor whether the power supply of the external power supply is normal.

In an embodiment of the present invention, the power supply monitoring circuit is further used to detect whether the power supply of the external power supply reaches a preset power supply standard.

In one embodiment of the present invention, the power supply system of the power consumption monitoring device also includes:

a charging circuit, connected between the main power supply interface and the backup power supply,

Wherein, the processor is respectively connected with the charging circuit and the power supply monitoring circuit, and is used to control the charging when it is detected that the external power supply is powered and the power supply of the external power supply reaches the preset power supply standard. A circuit is powered by the external power source to the backup power source.

In one embodiment of the present invention, the power supply system of the power consumption monitoring device also includes:

The charging management circuit is connected with the charging circuit and is used for detecting whether the charging of the charging circuit is completed.

In one embodiment of the present invention, the processor is connected to the charging management circuit and the charging circuit respectively, and is used to control the The charging circuit stops supplying power.

The power supply system of the power consumption monitoring equipment in the embodiment of the present invention adopts the backup power conversion power supply technology.

The monitoring device has a backup power supply, which can be charged for the backup power supply when powered by an external power supply. When the backup power management circuit in the monitoring device detects that the external power supply is out of power, the control power supply is switched to be powered by the backup power supply to maintain the work of the monitoring device.

The power supply system of the power consumption monitoring equipment in the embodiment of the present invention adopts the backup power conversion power supply technology principle as follows:

The main principle of the standby power conversion power supply technology of the monitoring device is to design a backup power management circuit to monitor which power supply is currently powered. When the external power supply fails, switch the backup power supply to work. When the external power supply is powered, switch the power supply to the external power supply. At the same time to charge the backup power.

The backup power supply management circuit monitors the external power supply signal. When the logic standard is met (when the external power supply is normally powered), the control part of the circuit will switch to the external power supply, and at the same time command the charging part of the circuit to work and charge the backup power supply. After the backup power supply is fully charged The management circuit commands the part of the charging circuit to stop working, and the backup power supply stops charging.

The backup power conversion power supply technology of the monitoring device is mainly divided into several main parts: management circuit, control part circuit, charging part circuit, backup power supply and so on.

Application of backup power conversion power supply technology for monitoring devices

The backup power conversion power supply technology of the monitoring device is specially designed for key user monitoring terminals, and its application scope can be determined by the scope of application of key user monitoring terminals.

Through the power supply system of the power consumption monitoring equipment in the embodiment of the present invention, it is realized:

Automatic monitoring of power status;

Automatically switch power supply;

Automatic charging and stop charging;

Isolation switching circuit, high reliability, preventing mutual interference between external power supply and backup power supply;

Over-saturation charging protection to prevent battery instability caused by over-charging of the backup power supply, resulting in potential safety hazards;

The main structure of the backup power conversion power supply technology of the monitoring device:

The backup power conversion power supply technology of the monitoring device is mainly divided into several main parts: management circuit, control part circuit, charging part circuit, backup power supply and so on.

The management circuit is the core part of the whole technology. Its main function is to judge and command the work of the control circuit to switch the power supply, and to judge and command the work of the charging circuit to charge.

The control part circuit is an execution circuit, which executes switching power supply according to the command condition of the management circuit, and has the function of isolating two power supplies.

The charging part of the circuit is an execution circuit, which charges and stops charging the backup power supply according to the command conditions of the management circuit.

The backup power supply part can provide the electric energy required for the whole device to work, and can be charged repeatedly.

Through the power supply system of the power consumption monitoring equipment in the embodiment of the present invention, the key user monitoring device backup power automatic switching technology is adopted; the key user monitoring device power supply automatic switching function, the key user monitoring device backup power automatic charging function, and the key user monitoring The backup power supply of the device is fully charged and automatically stops charging. Dual power supply works, reliable technology, and stable performance; avoiding the failure to collect power outages; avoiding power outages that cannot work; isolation and overvoltage protection circuits, high reliability, safe and reliable; The standby power conversion power supply technology of the monitoring device has been applied in the electricity monitoring terminal of the key users of the urban bureau, which proves that the practical application is feasible and has achieved the original intention of the design product. The actual operation effect is as follows: the collection of power outage status is realized; the dual power supply switching function is realized; the backup power supply conversion function of the monitoring device is realized; the automatic charging and full stop function is realized; it is safe and reliable without causing damage to the power line impact and pose safety hazards.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (1)

1. A kind of 1. electric power system of electricity consumption monitoring equipment, it is characterised in that including：

   Primary power cource interface, it is arranged in the electric power system of electricity consumption monitoring equipment, for being connected as the electricity consumption monitoring equipment The external power source of electric power system power supply；

   Stand-by power supply, it is arranged in the electric power system of the electricity consumption monitoring equipment, the electric power system with the electricity consumption monitoring equipment Be connected with electric loading, and be connected with the primary power cource interface, the application of the stand-by power supply is according to emphasis The scope of application of user's monitoring terminal determines；

   Processor, it is respectively connected with the primary power cource interface and the stand-by power supply, for detecting the external electrical When source is stopped power supply, the stand-by power supply is controlled to the electricity consumption load supplying of the electric power system of the electricity consumption monitoring equipment；And

   Charging circuit, it is connected between the primary power cource interface and the stand-by power supply, wherein, the processor fills with described Circuit is connected, for when detecting the external power source power supply, controlling the charging circuit to pass through the external power source Powered to the stand-by power supply；

   Power supply observation circuit, is connected, whether the power supply for monitoring the external power source is normal with the primary power cource interface；

   Whether the power supply that the power supply observation circuit is additionally operable to detect the external power source reaches default supply standard,

   The electric power system of the electricity consumption monitoring equipment also includes back-up source management circuit, and the back-up source manages circuit monitoring External power source signal, when meeting logical criteria, circuit work commander in control section switches to external power, while commands charging part Parallel circuit is worked, and the stand-by power supply is charged, management circuit commander's live part after the stand-by power supply is fully charged Circuit is stopped, and the stand-by power supply stops charging；

   The processor is respectively connected with the charging circuit and the power supply observation circuit, for detecting the outside When power supply is powered and the power supply of the external power source reaches the default supply standard, the charging circuit is controlled to pass through described outer Portion's power supply is powered to the stand-by power supply；

   Also include：Charge management circuit, it is connected with the charging circuit, whether the charging for detecting the charging circuit is complete Into；

   The processor is respectively connected with the charge management circuit and the charging circuit, in Charge Management electricity After road detects the charging complete of the charging circuit, the charging circuit is controlled to stop power supply.