WO2022027461A1

WO2022027461A1 - Remote monitoring system and method for storage battery

Info

Publication number: WO2022027461A1
Application number: PCT/CN2020/107459
Authority: WO
Inventors: 蔡舵
Original assignee: 深圳市中联创新自控系统有限公司
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2022-02-10

Abstract

The present invention relates to a remote monitoring system and method for a storage battery, comprising a storage battery pack and a monitoring apparatus; the storage battery pack comprises a plurality of single storage cells; the monitoring apparatus comprises: a plurality of single cell collection modules electrically connected and arranged to correspond to the plurality of single storage cells, a monitoring main unit connected to the plurality of single cell collection modules, a voltage collection module connected to the monitoring main unit, and a current collection module connected to the monitoring main unit; the current collection module is used for collecting current information of the storage battery pack; the voltage collection module is used for collecting voltage information of the storage battery pack; the single cell collection module is used for collecting single cell information of the corresponding single storage cell; and the monitoring main unit is used for acquiring the current information, the voltage information, and the single cell information, and uploading the current information, the voltage information, and the single cell information to a host computer. The present invention can implement real-time remote monitoring of the state of the single cells, reducing manual inspection costs and eliminating safety hazards of the power source system.

Description

A battery remote monitoring system and method

technical field

The invention relates to the technical field of battery safety monitoring, and more particularly, to a battery remote monitoring system and method.

Background technique

As the scale of the data center continues to expand, the cost of manual inspection is getting higher and higher, and the monitoring of UPS batteries is not accurate and timely, and it is impossible to monitor the status of single batteries in real time. The detected battery has become the biggest hidden danger of the power system.

technical problem

The technical problem to be solved by the present invention is to provide a battery remote monitoring system and method aiming at the above-mentioned defects of the prior art.

technical solutions

The technical solution adopted by the present invention to solve the technical problem is: constructing a battery remote monitoring system, including a battery pack and a monitoring device;

The battery pack includes a plurality of single batteries;

The monitoring device includes: a plurality of single battery acquisition modules arranged corresponding to and electrically connected to the plurality of single battery cells, a monitoring host connected to the plurality of single battery acquisition modules, and a monitoring host connected to the monitoring host The voltage acquisition module and the current acquisition module connected with the monitoring host;

the current acquisition module, configured to collect current information of the battery pack;

the voltage acquisition module, configured to collect voltage information of the battery pack;

The single battery collection module is used to collect the single battery information of the single battery set corresponding to it;

The monitoring host is used to acquire the current information, the voltage information and the single unit information, and upload the current information, the voltage information and the single unit information to the upper computer.

Preferably, the plurality of single cell collection modules are connected in series.

Preferably, the current acquisition module is an open-loop magnetic detection element, and the open-loop magnetic detection element is sleeved on the wire of the battery pack to collect current information of the battery pack.

Preferably, the open-loop magnetic detection element is an open-loop Hall collar.

Preferably, the monitoring host communicates in a ring with the current acquisition module, the voltage acquisition module and the plurality of single battery acquisition modules.

Preferably, when any single cell collection module of the plurality of single cell collection modules is open-circuited, other modules of the plurality of single cell collection modules maintain communication with the monitoring host.

Preferably, the monitoring host is further configured to: when any one or more of the plurality of single cell collection modules fails, cut off all the single cell collection modules.

Preferably, the monitoring host is further configured to: judge whether the current, voltage and single cell of the battery pack are abnormal according to the current information, the voltage information and the single cell information, and determine whether the current, voltage and single cell of the battery pack are abnormal, and When the current, voltage and single battery are abnormal, abnormal information and abnormal control signal are output.

Preferably, it also includes:

An alarm module that is connected to the monitoring host, receives the abnormality control signal, and outputs an abnormality alarm signal according to the abnormality control signal.

Preferably, the monitoring host is further used for: coding and setting the current collection module, the voltage collection module and the plurality of single battery collection modules.

Preferably, it also includes: a host computer;

The upper computer is connected in communication with the monitoring host, and is used for receiving current information, voltage information, single information and abnormality information uploaded by the monitoring host.

The invention also provides a battery remote monitoring method, which is applied to a battery remote monitoring system. The battery remote monitoring system includes a battery pack and a monitoring device; the battery pack includes a plurality of single batteries; the monitoring device includes: a current acquisition a module, a voltage collection module, and a plurality of single battery collection modules corresponding to the plurality of single battery cells;

The method includes:

Collect the current information of the battery pack through the current acquisition module;

Collect the voltage information of the battery pack through the voltage acquisition module;

Collect the cell information of the cell corresponding to the cell through the cell collection module;

Obtain the current information, voltage information and the monomer information through the monitoring host, and upload the current information, voltage information and monomer information to the upper computer.

Preferably, the method further includes:

When any one or more of the plurality of single battery collection modules fail, the monitoring host cuts off all single battery collection modules.

Preferably,

The method also includes:

The monitoring host determines whether the current, voltage and single cell of the battery pack are abnormal according to the current information, the voltage information and the single cell information, and determines whether the current, voltage and single cell of the storage battery pack are abnormal. When abnormal, output abnormal information and abnormal control signal.

Preferably, the method further includes:

An abnormal alarm signal is output according to the abnormal control signal.

Preferably, the method further includes:

Code setting is performed on the current collection module, the voltage collection module and the plurality of single battery collection modules.

Preferably, the battery remote monitoring system further comprises: a host computer;

The method also includes:

The upper computer receives and displays the current information, voltage information, cell information, and abnormal information uploaded by the monitoring host, and issues control instructions to the monitoring host.

beneficial effect

The battery remote monitoring system implemented in the present invention has the following beneficial effects: including a battery pack and a monitoring device; the battery pack includes a plurality of single batteries; the monitoring device includes: a plurality of single batteries arranged corresponding to and electrically connected to the plurality of single batteries a bulk battery acquisition module, a monitoring host connected to a plurality of single battery acquisition modules, a voltage acquisition module connected to the monitoring host, and a current acquisition module connected to the monitoring host; the current acquisition module is used to collect current information of the battery pack; The voltage collection module is used to collect the voltage information of the battery pack; the single cell collection module is used to collect the single cell information of the single battery set corresponding to it; the monitoring host is used to obtain the current information, voltage information and single cell information, And upload current information, voltage information and monomer information to the host computer. The invention can perform real-time remote monitoring on the state of the single battery, reduce the cost of manual inspection, and can eliminate the potential safety hazard of the power supply system.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

1 is a schematic block diagram of a battery remote monitoring system provided by an embodiment of the present invention;

FIG. 2 is a schematic block diagram of ring communication of a battery remote monitoring system provided by an embodiment of the present invention;

3 is a schematic block diagram of automatic coding of a battery remote monitoring system provided by an embodiment of the present invention;

FIG. 4 is a flowchart of a method for remote monitoring of a battery provided by an embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

In order to have a clearer understanding of the technical features, objects and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

In order to solve the problems that the current monitoring of the UPS battery is not accurate and timely, and the state of the single battery cannot be monitored in real time, which leads to a large potential safety hazard in the power supply system, the present invention provides a battery remote monitoring system. And upload it to the host computer 200, which can realize the accurate and timely monitoring of the UPS battery, reduce the cost of manual inspection, and eliminate potential safety hazards.

FIG. 1 is a schematic diagram of an optional embodiment of each embodiment provided by the present invention.

Referring to FIG. 1 , the battery remote monitoring system may include a battery pack 50 and a monitoring device.

The battery pack 50 includes a plurality of single batteries.

Further, in some embodiments, the monitoring device includes: a plurality of single battery collection modules 20 corresponding to and electrically connected to a plurality of single battery cells, and a monitoring host 10 connected to the plurality of single battery collection modules 20 , a voltage acquisition module 30 connected to the monitoring host 10 , and a current acquisition module 40 connected to the monitoring host 10 .

In some embodiments, the current collection module 40 is used to collect current information of the battery pack 50 . Wherein, what the current collection module 40 collects is the current information of the entire battery pack 50 . By collecting the current information of the battery pack 50 in real time, the actual situation of the total current of the battery pack 50 can be monitored in real time.

Further, in some embodiments, the current acquisition module 40 is an open-loop magnetic detection element, and the open-loop magnetic detection element is sleeved on the wires of the battery pack 50 to collect current information of the battery pack 50 . Optionally, the open-loop magnetic detection element is: an open-loop Hall collar. By using an open-loop Hall collar sleeved on the wires of the battery pack 50 , and based on the magnetic balance Hall principle, the current passing through the wires can be measured, so as to achieve the purpose of collecting the total current of the battery pack 50 .

In some embodiments, the voltage collection module 30 is used to collect voltage information of the battery pack 50 . Wherein, what the voltage collection module 30 collects is the voltage information of the entire battery pack 50 . By collecting the voltage information of the battery pack 50 in real time, the actual situation of the total voltage of the battery pack 50 can be monitored in real time.

In some embodiments, the single cell collection module is used to collect cell information of the single cell battery corresponding to it. Specifically, in the embodiment of the present invention, each single battery collection module is set corresponding to one single battery. As shown in Figure 1, assuming that there are N single battery cells, and N is an integer greater than or equal to 2, there are correspondingly N single battery cell collection modules. Among them, the No. 1 single battery acquisition module is set corresponding to the No. 1 single battery, the No. 2 single battery acquisition module is set corresponding to the No. 2 single battery, ..., the N No. single battery acquisition module is set corresponding to the N No. single battery corresponding settings. Further, each single cell collection module only collects cell information of its corresponding single battery, and adjacent single cell collection modules do not affect each other, that is, they do not affect their respective collection work.

Further, in some embodiments, a plurality of single cell collection modules 20 are connected in series. That is, there is a hand-in-hand mode between two adjacent single battery acquisition modules.

Further, the cell information includes, but is not limited to, cell voltage information, cell temperature information, and cell internal resistance information of a single battery cell. By collecting the cell voltage information, cell temperature information and cell internal resistance information of the corresponding cell battery by each cell collection module, the real-time monitoring and control of the state of the cell battery can be realized.

In some embodiments, the monitoring host 10 is used to acquire current information, voltage information and cell information, and upload the current information, voltage information and cell information to the upper computer 200 .

Specifically, the current collection module 40 , the voltage collection module 30 and the plurality of single cell collection modules 20 respectively collect the current information of the battery pack 50 , the voltage information of the battery pack 50 and the cell information of each single battery and send them to The host computer 10 is monitored so that the host computer 10 can obtain corresponding information, so as to realize real-time monitoring and control of the current information, voltage information of the battery pack 50 and the cell information of the single battery cells. Wherein, the collected information may be sent to the monitoring host 10 in real time and at regular intervals (eg, 1s, 2s, . . . , 1 minute, etc.), which is not specifically limited in the present invention.

Further, the monitoring host 10 also uploads the acquired current information of the battery pack 50, the voltage information of the battery pack 50 and the cell information of each single battery to the host computer 200, so as to realize the current information of the battery pack 50. , the voltage information of the battery pack 50 and the remote monitoring of the single battery information of each single battery.

Further, in some embodiments, the monitoring host 10 communicates with the current acquisition module 40 , the voltage acquisition module 30 and the plurality of single battery acquisition modules 20 in a ring-shaped manner. Specifically, as shown in FIG. 1 , in some embodiments, the voltage collection module 30 and the single battery collection module 1 are connected in series (ie, hand-in-hand mode). Similarly, the current collection module 40 is connected to the single cell. The battery acquisition modules N are also connected in series communication (ie, hand-in-hand mode). In this embodiment, the monitoring host 10 has two interfaces, one of which is an output interface and an input interface. As shown in FIG. 1 , the monitoring host 10 outputs signals from the output interface to the voltage collection module 30 , and the voltage collection module 30 transmits the collected voltage information of the battery pack 50 to the single cell collection module 1 , and the single cell collection module 1. Send the collected cell information of the single battery 1 and the voltage information transmitted by the voltage collection module 30 to the single cell collection module 2, and the single cell collection module 2 will collect the collected information of the single cell 2. The single cell information, the single cell information of the single battery 1 sent by the single cell collection module 1, and the voltage information are sent to the single cell collection module 3, . . . The single cell collection module N collects the collected single cells The cell information of N, the cell information of the single battery N-1, . The current information, the cell information of the single battery N, the single cell information of the single battery N-1, ..., the single cell information of the single battery 1, and the voltage information are transmitted to the input interface of the monitoring host 10, so as to realize the ring communication .

Further, by adopting the ring communication, when any one of the plurality of single cell collection modules 20 fails to open circuit, the other modules of the plurality of single cell collection modules 20 can still maintain communication with the monitoring host 10. .

As shown in Figure 2, assuming that there are 5 single battery acquisition modules, when the single battery acquisition module 3 of the 5 single battery acquisition modules fails and opens, the single battery acquisition module 1 and the single battery acquisition module 2 , the single battery acquisition module 3 , the single battery acquisition module 4 and the single battery acquisition module 5 can still maintain normal communication with the monitoring host 10 . The method of transmitting the collected cell information to the monitoring host 10 is as follows: the cell information of the cell battery 2 collected by the cell cell collection module 2 is transmitted to the cell cell collection module 1—the cell cell collection module It transmits the collected information of the single battery 1 and the single battery 2 to the voltage acquisition module 30 --- the voltage acquisition module 30 transmits the collected voltage information and the single information of the single battery 1 The information of the single battery and the single battery 2 is transmitted to the monitoring host 10; at the same time, the single information of the single battery 4 collected by the single battery acquisition module 4 is transmitted to the single battery acquisition module 5-the single battery acquisition module 5 will The collected cell information of the single battery 5 and the single cell information of the single battery 4 are transmitted to the current collection module 40, and the current collection module 40 collects the collected current information, the single cell information of the single battery 4 and the single cell information. The cell information of the battery 5 is transmitted to the monitoring host 10 .

Further, in some embodiments, the monitoring host 10 is further configured to: cut off all the single battery collection modules when any one or more of the multiple single battery collection modules 20 fail. Specifically, when any one or more of the multiple single battery collection modules 20 fail, the monitoring host 10 can stop all single battery collection modules from working through the power supply of all single battery collection modules, so as to cut off all the single battery collection modules. Single battery acquisition module. Among them, when the single cell collection module fails, it may cause the single cell collection module to form a loop with the positive and negative electrodes of the single battery. The battery acquisition module is faulty and the single battery is over-discharged.

Further, the monitoring host 10 is also used to judge whether the current, voltage and single cell of the battery pack 50 are abnormal according to the current information, voltage information and single cell information, and when the current, voltage and single cell of the battery pack 50 are abnormal. Output abnormal information and abnormal control signal. Specifically, when the current information of the battery pack 50 is abnormal, the monitoring host 10 outputs the current abnormality information of the battery pack 50; when the voltage information of the battery pack 50 is abnormal, the monitoring host 10 outputs the abnormal voltage information of the battery pack 50; When the information of any one or more cells in the single battery is abnormal, the monitoring host 10 outputs the corresponding abnormal information of the corresponding single battery. Further, the monitoring host 10 also outputs an abnormality control signal while outputting abnormality information.

Further, in some embodiments, the monitoring host 10 is further configured to: perform coding settings on the current collection module 40 , the voltage collection module 30 and the plurality of single battery collection modules 20 .

As shown in FIG. 3 , the monitoring host 10 may broadcast address code 1 (Add1) to the first module (such as the voltage acquisition module 30 ) in the ring communication, and the first module (the voltage acquisition module 30 ) receives the address code 1 After (Add1), encode it by itself, and broadcast address code 2 (Add2) to the next module (single battery acquisition module 1), and so on. By automatically coding all modules in the ring communication, the tedious manual coding configuration can be effectively performed, and the error of human operation can also be avoided.

Further, in some embodiments, it also includes: an alarm module connected to the monitoring host 10, receiving an abnormality control signal, and outputting an abnormality alarm signal according to the abnormality control signal. Optionally, the alarm module includes but is not limited to sound, display alarm, etc., such as horn alarm, buzzer alarm, indicator light (such as LED light, etc.) alarm.

Further, in some embodiments, it also includes: a host computer 200 .

The upper computer 200 is connected in communication with the monitoring host 10 , and is used for receiving current information, voltage information, single information and abnormality information uploaded by the monitoring host 10 . Specifically, the host computer 200 also displays the received current information, voltage information, cell information, and abnormal information, so that the monitoring personnel can remotely and intuitively grasp the real-time status of the battery pack 50 and the single-cell battery. Further, the host computer 200 can also issue control instructions to the monitoring host 10 to control the monitoring host 10 to control the battery pack 50/single battery, so as to achieve the purpose of real-time remote monitoring.

The invention also provides a battery remote monitoring method, which can be applied to a battery remote monitoring system. The battery remote monitoring system includes a battery pack 50 and a monitoring device; the battery pack 50 includes a plurality of single batteries; the monitoring device includes: a current acquisition module 40, a voltage acquisition module 30, and a plurality of battery cells corresponding to the plurality of single batteries. Single battery collection module 20 .

Specifically, as shown in Figure 4, the method includes the following steps:

The current information of the battery pack 50 is collected by the current collection module 40;

Collect the voltage information of the battery pack 50 through the voltage collection module 30;

The current information, voltage information and cell information are acquired by monitoring the host computer 10 , and the current information, voltage information and cell information are uploaded to the upper computer 200 .

Wherein, in some embodiments, a plurality of single battery collection modules 20 are connected in series.

Further, the current acquisition module 40 is an open-loop magnetic detection element, and the open-loop magnetic detection element is sleeved on the wires of the battery pack 50 to collect current information of the battery pack 50 . Optionally, the open-loop magnetic detection element is: an open-loop Hall collar.

Further, the monitoring host 10 communicates with the current acquisition module 40 , the voltage acquisition module 30 and the plurality of single battery acquisition modules 20 in a ring-shaped manner.

Further, when any one of the plurality of single cell collection modules 20 is open-circuited, the other modules of the plurality of single cell collection modules 20 keep communicating with the monitoring host 10 .

Further, in some embodiments, the method also includes the following steps:

When any one or more of the plurality of single cell collection modules 20 fail, the monitoring host 10 cuts off all the single cell collection modules.

Further, in some embodiments, the method also includes the following steps:

The monitoring host 10 judges whether the current, voltage and single cell of the battery pack 50 are abnormal according to the current information, voltage information and single cell information, and outputs the abnormality information and the abnormality control signal when the current, voltage and single cell of the battery pack 50 are abnormal .

Further, in some embodiments, the method further includes the step of: outputting an abnormal alarm signal according to the abnormal control signal.

Further, in some embodiments, the method also includes the following steps:

The current collection module 40 , the voltage collection module 30 and the plurality of single battery collection modules 20 are coded and set.

Further, in some embodiments, the method also includes the following steps:

The upper computer 200 receives and displays the current information, voltage information, cell information, and abnormal information uploaded by the monitoring host 10 , and issues control instructions to the monitoring host 10 .

By adopting the ring communication, the open circuit of any module will not affect the collection and communication of the single battery by the other modules, and the method of automatic address coding can automatically code the modules without complicated and tedious manual operation, and can also avoid Human operation error. In addition, the monitoring host 10 of the present invention also has an active cut-off function. When a fault occurs, it can actively cut off the whole group of single battery acquisition modules, so as to avoid over-discharge of the single battery due to the fault of the single battery acquisition module, and to prevent the single battery from being over-discharged. achieve effective protection.

The above embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement accordingly, and cannot limit the protection scope of the present invention. All equivalent changes and modifications made with the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

A battery remote monitoring system, characterized in that it includes a battery pack and a monitoring device;

The battery pack includes a plurality of single batteries;

The monitoring device includes: a plurality of single battery acquisition modules arranged corresponding to and electrically connected to the plurality of single battery cells, a monitoring host connected to the plurality of single battery acquisition modules, and a monitoring host connected to the monitoring host The voltage acquisition module and the current acquisition module connected with the monitoring host;

the current acquisition module, configured to collect current information of the battery pack;

the voltage acquisition module, configured to collect voltage information of the battery pack;

The single battery collection module is used to collect the single battery information of the single battery set corresponding to it;

The monitoring host is used to acquire the current information, the voltage information and the single unit information, and upload the current information, the voltage information and the single unit information to the upper computer.
The battery remote monitoring system according to claim 1, wherein the plurality of single battery acquisition modules are connected in series.
The battery remote monitoring system according to claim 1, wherein the current acquisition module is an open-loop magnetic detection element, and the open-loop magnetic detection element is sleeved on the wires of the battery pack to Collect current information of the battery pack.
The battery remote monitoring system according to claim 3, wherein the open-loop magnetic detection element is an open-loop Hall collar.
The battery remote monitoring system according to claim 2, wherein the monitoring host communicates in a ring with the current acquisition module, the voltage acquisition module and the plurality of single cell acquisition modules.
The battery remote monitoring system according to claim 5, wherein when any one of the plurality of single cell collection modules is open, the other modules in the plurality of single cell collection modules are open-circuited. Maintain communication with the monitoring host.
The battery remote monitoring system according to claim 1, wherein the monitoring host is further configured to: when any one or more of the plurality of single battery acquisition modules fails, cut off all single battery acquisition modules module.
The battery remote monitoring system according to claim 1, wherein the monitoring host is further used for: judging the current, voltage and Check whether the single cells are abnormal, and output abnormal information and abnormal control signals when the current, voltage and single cells of the battery pack are abnormal.
The battery remote monitoring system according to claim 8, further comprising:

An alarm module that is connected to the monitoring host, receives the abnormality control signal, and outputs an abnormality alarm signal according to the abnormality control signal.
The battery remote monitoring system according to claim 8, wherein the monitoring host is further configured to: perform coding settings on the current acquisition module, the voltage acquisition module and the plurality of single battery acquisition modules.
The battery remote monitoring system according to claim 1, further comprising: a host computer;

The upper computer is connected in communication with the monitoring host, and is used for receiving current information, voltage information, single information and abnormality information uploaded by the monitoring host.
A battery remote monitoring method, characterized in that it is applied to a battery remote monitoring system, the battery remote monitoring system includes a battery pack and a monitoring device; the battery pack includes a plurality of single batteries; the monitoring device includes: a current acquisition a module, a voltage acquisition module, and a plurality of single battery acquisition modules corresponding to the plurality of single battery cells;

The method includes:

Collect the current information of the battery pack through the current acquisition module;

Collect the voltage information of the battery pack through the voltage acquisition module;

Collect the cell information of the correspondingly set single battery through the single cell collection module;

Obtain the current information, voltage information and the monomer information through the monitoring host, and upload the current information, voltage information and monomer information to the upper computer.
The battery remote monitoring method according to claim 12, wherein the plurality of single battery acquisition modules are connected in series.
The battery remote monitoring method according to claim 12, wherein the current acquisition module is an open-loop magnetic detection element, and the open-loop magnetic detection element is sleeved on the wire of the battery pack to Collect current information of the battery pack.
The battery remote monitoring method according to claim 14, wherein the open-loop magnetic detection element is an open-loop Hall collar.
The battery remote monitoring method according to claim 13, wherein the monitoring host communicates in a ring with the current acquisition module, the voltage acquisition module and the plurality of single cell acquisition modules.
The battery remote monitoring method according to claim 16, wherein when any single cell collection module of the plurality of single cell collection modules is open, other modules of the plurality of single cell collection modules Maintain communication with the monitoring host.
The battery remote monitoring method according to claim 12, wherein the method further comprises:

When any one or more of the plurality of single battery collection modules fail, the monitoring host cuts off all single battery collection modules.
The battery remote monitoring method according to claim 12, wherein,

The method also includes:

The monitoring host determines whether the current, voltage and single cell of the battery pack are abnormal according to the current information, the voltage information and the single cell information, and determines whether the current, voltage and single cell of the storage battery pack are abnormal. When abnormal, output abnormal information and abnormal control signal.
The battery remote monitoring method according to claim 19, wherein the method further comprises:

An abnormal alarm signal is output according to the abnormal control signal.
The battery remote monitoring method according to claim 19, wherein the method further comprises:

Code setting is performed on the current collection module, the voltage collection module and the plurality of single battery collection modules.
The battery remote monitoring method according to claim 12, wherein the battery remote monitoring system further comprises: a host computer;

The method also includes:

The upper computer receives and displays the current information, voltage information, cell information, and abnormal information uploaded by the monitoring host, and issues control instructions to the monitoring host.