Low-power-consumption communication method and system of wireless BMS and storage medium

Abstract

The invention discloses a low-power-consumption communication method and system of a wireless BMS and a storage medium, and the method comprises the steps: creating a communication frequency hopping table which comprises a plurality of wireless communication frequency bands, each wireless communication frequency band occupies a communication time period, and the communication time periods are sorted according to a time sequence; distributing a wireless communication frequency band for each slave node, and sending each wireless communication frequency band to each slave node; and when the communication between the master node and the slave node is established, opening the communication switch of the current wireless communication frequency band according to the communication frequency hopping table, communicating with the slave node corresponding to the current wireless communication frequency band, and keeping the communication switches of other wireless communication frequency bands closed. According to the invention, the master node only opens one communication switch in one communication time period to communicate with one slave node, and the communication switches of other slave nodes are closed, so that the communication power consumption of the wireless BMS is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power battery management, and in particular to a secure communication method, system and storage medium for a wireless BMS. Background Art

[0002] The power battery consists of multiple battery modules. During operation, a wireless BMS (Battery Management System) is needed to monitor the working conditions of the battery modules, such as the temperature, pressure, and voltage of the battery modules.

[0003] In current wireless BMS technology, multiple slave nodes are used to connect to multiple battery modules, and a master node is used to wirelessly communicate with multiple slave nodes. The master node and multiple slave nodes transmit and receive data via receivers and transmitters. Due to the limited channel capacity of the communication frequency band at the same time, the master node cannot transmit and receive data with all slave nodes simultaneously. However, when the master node transmits and receives data with one or some slave nodes, the transmitters and receivers of all slave nodes are simultaneously in operation. The transmitters and receivers of slave nodes that are not transmitting or receiving data are also in operation, which can cause high communication power consumption of the wireless BMS.

[0004] Therefore, there is an urgent need for a low-power communication method for a wireless BMS that can reduce the communication power consumption of the wireless BMS. Summary of the Invention

[0005] The main purpose of the present invention is to propose a low-power communication method, system and storage medium for a wireless BMS to solve the problem of high communication power consumption of the existing defective wireless BMS.

[0006] To achieve the above objectives, the present invention proposes a low-power communication method for a wireless BMS, which is used for a master node. The master node includes multiple communication switches. The low-power communication method for the wireless BMS includes:

[0007] Creating a communication frequency hopping table, wherein the communication frequency hopping table includes a plurality of wireless communication frequency bands, each of the wireless communication frequency bands occupies a communication time period, and the communication time periods are sorted in chronological order;

[0008] Allocate wireless communication frequency bands to each slave node respectively, and send each wireless communication frequency band to each slave node;

[0009] When establishing communication between the master node and the slave node, the communication switch of the current wireless communication frequency band is turned on according to the communication frequency hopping table, communication is performed with the slave node corresponding to the current wireless communication frequency band, and the communication switches of other wireless communication frequency bands are kept closed.

[0010] In some embodiments, the master node creates a communication frequency hopping table, including:

[0011] determining the number of said slave nodes with which to communicate;

[0012] creating one or more frequency band groups according to the number of the slave nodes;

[0013] Generate the communication frequency hopping table containing one or more frequency band groups.

[0014] In some embodiments, allocating wireless communication frequency bands to each slave node respectively includes:

[0015] Each wireless communication frequency band in the frequency band group is allocated to each slave node respectively.

[0016] In some embodiments, the communication switch includes a transmitter and a receiver; turning on the communication switch of the current wireless communication frequency band according to the communication frequency hopping table and communicating with the slave node corresponding to the current wireless communication frequency band includes:

[0017] Turning on the transmitter of the current wireless communication frequency band;

[0018] The master node communication message is sent to the slave node through the transmitter.

[0019] In some embodiments, the communication switch includes a transmitter and a receiver; turning on the communication switch of the current wireless communication frequency band according to the communication frequency hopping table and communicating with the slave node corresponding to the current wireless communication frequency band includes:

[0020] Turning on the receiver of the current wireless communication frequency band pair;

[0021] The slave node communication message is received by the receiver.

[0022] In some embodiments, after turning on the communication switch of the current wireless communication frequency band according to the communication frequency hopping table and communicating with the slave node corresponding to the current wireless communication frequency band, the method further includes:

[0023] Determining whether a current communication period of the current wireless communication frequency band has ended;

[0024] When the current communication period of the current wireless communication frequency band ends, the transmitter or the receiver of the current wireless communication frequency band is turned off, and the current wireless communication frequency band is updated.

[0025] The present invention also proposes a low-power communication method for a wireless BMS, which is used for a slave node, wherein the slave node includes a communication switch. The low-power communication method for the wireless BMS includes:

[0026] Receive and save wireless communication frequency bands;

[0027] When the communication period of the wireless communication frequency band is the current communication period, the communication switch is turned on to communicate with the master node.

[0028] In some embodiments, the communication switch includes a transmitter and a receiver; and turning on the communication switch to communicate with the master node includes:

[0029] Turning on the receiver and receiving the master node communication message through the receiver; or,

[0030] The transmitter is turned on, and a slave node communication message is sent to the master node through the transmitter.

[0031] The present invention also proposes a low-power communication system for a wireless BMS, wherein the low-power communication system for the wireless BMS includes a master node and multiple slave nodes, wherein the master node and the multiple slave nodes are each configured with a communication switch, and the low-power communication system for the wireless BMS can execute any one of the low-power communication methods for the wireless BMS described above.

[0032] The present invention also provides a storage medium storing a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor is enabled to execute any one of the above-mentioned low-power communication methods for a wireless BMS.

[0033] The master node of the present invention creates a communication frequency hopping table, wherein the communication frequency hopping table includes multiple wireless communication frequency bands, each wireless communication frequency band occupies a communication time period, and each communication time period is sorted in chronological order; a wireless communication frequency band is allocated to each slave node respectively, and each wireless communication frequency band is synchronized to each slave node; when establishing communication between the master node and the slave node, the communication switch of the current wireless communication frequency band is turned on according to the communication frequency hopping table, and the slave node corresponding to the current wireless communication frequency band is communicated with, and the communication switches of other wireless communication frequency bands are kept closed; when communicating with the slave node through the master node, only the communication switch of the current wireless communication frequency band is turned on, while the communication switches of other wireless communication frequency bands remain closed. The master node only turns on one communication switch in one communication time period to communicate with one slave node, while the communication switches of other slave nodes are closed, thereby reducing the communication power consumption of the wireless BMS. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Schematic diagram of the flow of a low-power communication method for a wireless BMS in an embodiment of the present invention;

[0035] Figure 2 1 is another flow chart of the low-power communication method of the wireless BMS in an embodiment of the present invention;

[0036] Figure 31 is another flow chart of the low-power communication method of the wireless BMS in an embodiment of the present invention;

[0037] Figure 4 1 is another flow chart of the low-power communication method of the wireless BMS in an embodiment of the present invention;

[0038] Figure 5 1 is another flow chart of the low-power communication method of the wireless BMS in an embodiment of the present invention;

[0039] Figure 6 1 is another flow chart of the low-power communication method of the wireless BMS in an embodiment of the present invention;

[0040] Figure 7 Schematic diagram of the structure of the low-power communication system of the wireless BMS involved in the embodiment of the present invention;

[0041] Figure 8 Schematic diagram of the structure of a low-power communication device for a wireless BMS according to an embodiment of the present invention.

[0042] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0043] The following will be combined with the accompanying drawings to clearly and completely describe the solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0044] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0045] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0046] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0047] To achieve the above objectives, the present invention proposes a low-power communication method for a wireless BMS, which is used for a master node. The master node includes multiple communication switches. The low-power communication method for the wireless BMS includes:

[0048] Step S110, creating a communication frequency hopping table, wherein the communication frequency hopping table includes multiple wireless communication frequency bands, each wireless communication frequency band occupies a communication time period, and each communication time period is sorted in chronological order;

[0049] Step S120, allocating wireless communication frequency bands to each slave node respectively, and sending each wireless communication frequency band to each slave node;

[0050] Step S130, when establishing communication between the master node and the slave node, the communication switch of the current wireless communication frequency band is turned on according to the communication frequency hopping table, and the slave node corresponding to the current wireless communication frequency band is communicated with, and the communication switches of other wireless communication frequency bands are kept off.

[0051] In this embodiment, referring to Figure 1 and Figure 7 The low-power communication method for a wireless BMS can be applied to a low-power communication system for a wireless BMS. The low-power communication system for a wireless BMS includes a master node and multiple slave nodes, each of which is equipped with a communication switch. In this embodiment, the master node is the main body for executing the method steps.

[0052] It is understandable that the master node can have multiple communication switches, wherein the number of communication switches of the master node can be the same as the number of slave nodes; each slave node has a communication switch, and each communication switch of the master node corresponds to the communication switch of each slave node. When the master node communicates with the slave node, it will only turn on the communication switch of the current wireless communication frequency band, while the communication switches of other wireless communication frequency bands remain closed. The master node only turns on one communication switch in a communication period to communicate with one slave node, while the communication switches of other slave nodes are closed, reducing the communication power consumption of the wireless BMS. Similarly, the slave node corresponding to the current wireless communication frequency band will also turn on its own communication switch to communicate with the master node. The slave nodes corresponding to other wireless communication frequency bands will also keep their own communication switches closed.

[0053] The master node first creates a communication frequency hopping table. The table includes multiple wireless communication bands, each of which occupies a communication time period. The communication time periods are sorted chronologically. For example, if the table includes 10 wireless communication bands, from band 1 to band 10, and each band occupies a communication time period of 0.5 seconds, the communication time periods are sorted chronologically as follows: 0 seconds to 0.5 seconds for band 1, 0.5 seconds to 1 second for band 2, 1 second to 1.5 seconds for band 3, ..., 4 seconds to 4.5 seconds for band 9, and 4.5 seconds to 5 seconds for band 10.

[0054] After the master node creates the communication frequency hopping table, it can assign the wireless communication frequency bands in the communication frequency hopping table to each slave node. The master node assigns wireless communication frequency bands to each slave node and sends each wireless communication frequency band to each slave node. For example, if there are 10 slave nodes, numbered 1 through 10, the master node can assign the first wireless communication frequency band to the first slave node, the second wireless communication frequency band to the second slave node, and so on, the ninth wireless communication frequency band to the ninth slave node, and the tenth wireless communication frequency band to the tenth slave node. Each wireless communication frequency band is then sent to the corresponding slave node, allowing each slave node to obtain the corresponding wireless communication frequency band (for example, after the master node assigns the first wireless communication frequency band to the first slave node, it can send the first wireless communication frequency band to the first slave node to synchronize the first wireless communication frequency band to the first slave node).

[0055] After the master node transmits the wireless communication bands to each slave node, it can begin communicating with them. When establishing communication between the master and slave nodes, the master node turns on the communication switch for the current wireless communication band according to the frequency hopping table, communicating with the slave node corresponding to that band while keeping the communication switches for other wireless communication bands closed. For example, if the total communication duration is 5 seconds, then between 0 and 0.5 seconds, the master node determines that the current wireless communication band is band 1. At this point, the master node turns on the communication switch for band 1 to communicate with the first slave node, while keeping the communication switches for bands 2 through 10 closed. Similarly, between 0 and 0.5 seconds, the first slave node turns on its own communication switch to communicate with the master node.

[0056] When the master node of this embodiment communicates with the slave node, only the communication switch of the current wireless communication frequency band is turned on, while the communication switches of other wireless communication frequency bands remain closed. The master node only turns on one communication switch in a communication period to communicate with one slave node, while the communication switches of other slave nodes are turned off, thereby reducing the communication power consumption of the wireless BMS.

[0057] In some embodiments, the aforementioned master node creates a communication frequency hopping table, including:

[0058] Step S140, determining the number of slave nodes communicating with it;

[0059] Step S141, creating one or more frequency band groups according to the number of slave nodes;

[0060] Step S142: Generate a communication frequency hopping table including one or more frequency band groups.

[0061] In this embodiment, referring to Figure 2 When the master node executes step S110, it creates a communication frequency hopping table based on the number of slave nodes. The master node first determines the number of slave nodes with which it communicates. Specifically, the master node determines the number of slave nodes with which it needs to communicate. For example, if there are 10 slave nodes, after scanning these 10 slave nodes, the master node can determine that the number of slave nodes with which it communicates is 10.

[0062] After the master node determines the number of slave nodes it will communicate with, it can create one or more band groups based on the number of slave nodes. A band group contains multiple wireless communication bands, and the number of wireless communication bands in a band group must be the same as the number of slave nodes. For example, if there are 10 slave nodes, the master node can create one or more band groups containing all 10 wireless communication bands.

[0063] The master node can determine whether to create one or multiple frequency band groups based on the number of communications. For example, for each frequency band group, the master node can communicate with each slave node once. If the master node wants to communicate with each slave node once, it can create one frequency band group. If the master node wants to communicate with each slave node multiple times, it can create multiple frequency band groups.

[0064] After the master node creates one or more frequency band groups, it can generate a communication frequency hopping table containing one or more frequency band groups. That is, the master node integrates all created frequency band groups to generate the communication frequency hopping table.

[0065] In some embodiments, the aforementioned allocation of wireless communication frequency bands to each slave node includes:

[0066] Each wireless communication frequency band in the frequency band group is allocated to each slave node respectively.

[0067] In this embodiment, when the master node executes step S120, it allocates the wireless communication frequency bands in the frequency band group to the slave nodes. The master node allocates each wireless communication frequency band in the frequency band group to each slave node. If there are multiple frequency band groups, the master node may perform the allocation of each wireless communication frequency band in the frequency band group to each slave node multiple times.

[0068] For example, if a frequency band group includes 10 wireless communication frequency bands, namely wireless communication frequency band 1 through wireless communication frequency band 10, and there are 10 slave nodes, namely slave node 1 through slave node 10, the master node can then assign wireless communication frequency band 1 to slave node 1, wireless communication frequency band 2 to slave node 2, etc., wireless communication frequency band 9 to slave node 9, and wireless communication frequency band 10 to slave node 10.

[0069] In some embodiments, the communication switch includes a transmitter and a receiver; the aforementioned opening of the communication switch of the current wireless communication frequency band according to the communication frequency hopping table and communicating with the slave node corresponding to the current wireless communication frequency band includes:

[0070] Step S150, turning on the transmitter of the current wireless communication frequency band;

[0071] Step S151: Send a master node communication message to the slave node via a transmitter.

[0072] In this embodiment, referring to Figure 3When executing step S130, the master node may turn on its transmitter. A communication switch may include a transmitter and a receiver; the transmitter is used to send data, and the receiver is used to receive data. When the master node needs to send a master node communication message to a slave node corresponding to the current wireless communication frequency band, the master node may turn on its transmitter for the current wireless communication frequency band and then send the master node communication message to the slave node via the transmitter.

[0073] For example, when the master node needs to send a master node communication message to the first slave node, and the current wireless communication frequency band is the first wireless communication frequency band, the master node can turn on the transmitter of the first wireless communication frequency band, and then send the master node communication message to the first slave node through the transmitter.

[0074] In some embodiments, the communication switch includes a transmitter and a receiver; the aforementioned opening of the communication switch of the current wireless communication frequency band according to the communication frequency hopping table and communicating with the slave node corresponding to the current wireless communication frequency band includes:

[0075] Step S160, turning on the transmitter of the current wireless communication frequency band;

[0076] Step S161: Send the master node communication message to the slave node through the transmitter.

[0077] In this embodiment, referring to Figure 4 When the master node executes step S130, the receiver may also be turned on. When the master node needs to receive a slave node communication message sent by a slave node corresponding to the current wireless communication frequency band, the master node may turn on the receiver of the current wireless communication frequency band and then receive the slave node communication message through the receiver.

[0078] For example, when it is necessary to receive a slave node communication message sent by the second slave node and the current wireless communication frequency band is the second wireless communication frequency band, the master node can turn on the receiver of the second wireless communication frequency band and then receive the slave node communication message sent by the second slave node through the receiver.

[0079] In some embodiments, after turning on the communication switch of the current wireless communication frequency band according to the communication frequency hopping table and communicating with the slave node corresponding to the current wireless communication frequency band, the method further includes:

[0080] Step S170, determining whether the current communication period of the current wireless communication frequency band has ended;

[0081] Step S171: When the current communication period of the current wireless communication frequency band ends, the transmitter or receiver of the current wireless communication frequency band is turned off, and the current wireless communication frequency band is updated.

[0082] In this embodiment, referring to Figure 5After executing step S130, the master node also turns off the transmitter or receiver. The master node determines whether the current communication period of the current wireless communication band has ended, thereby determining whether to turn off the transmitter or receiver. If the master node determines that the current communication period of the current wireless communication band has ended, it turns off the transmitter or receiver of the current wireless communication band and updates the current wireless communication band.

[0083] For example, the frequency hopping table includes 10 wireless communication bands, from the 1st to the 10th wireless communication bands. Each wireless communication band occupies a communication period of 0.5 seconds. Then, the communication periods are arranged in chronological order as follows: 0 seconds to 0.5 seconds for the 1st wireless communication band, 0.5 seconds to 1 second for the 2nd wireless communication band, 1 second to 1.5 seconds for the 3rd wireless communication band, ..., 4 seconds to 4.5 seconds for the 9th wireless communication band, and 4.5 seconds to 5 seconds for the 10th wireless communication band. If there are 10 slave nodes, from the 1st to the 10th slave nodes, the master node can assign the 1st wireless communication band to the 1st slave node, the 2nd wireless communication band to the 2nd slave node, ..., the 9th wireless communication band to the 9th slave node, and the 10th wireless communication band to the 10th slave node.

[0084] If the total communication duration is 5 seconds, then when the communication time is between 0 seconds and 0.5 seconds, the master node determines that the current wireless communication band is the first wireless communication band. At this time, the master node will turn on the transmitter or receiver of the first wireless communication band and communicate with the first slave node. At the same time, the master node will also determine whether the communication time exceeds 0.5 seconds. If it exceeds 0.5 seconds, the master node will turn off the transmitter or receiver of the first wireless communication band, thereby ending communication with the first slave node. If the communication time exceeds 0.5 seconds, it will enter the 0.5-1 second period, at which time the master node will update the current wireless communication band to the second wireless communication band.

[0085] The present invention also proposes a low-power communication method for a wireless BMS, which is used for a slave node. The slave node includes a communication switch. The low-power communication method for the wireless BMS includes:

[0086] Step S180, receiving and saving the wireless communication frequency band;

[0087] Step S181: When the communication period of the wireless communication frequency band is the current communication period, turn on the communication switch to communicate with the master node.

[0088] In this embodiment, referring to Figure 6 and Figure 7The low-power communication method for a wireless BMS can be applied to a low-power communication system for a wireless BMS. The low-power communication system for a wireless BMS includes a master node and multiple slave nodes, each of which is equipped with a communication switch. In this embodiment, the execution of the method steps is performed by the slave node.

[0089] It is understood that each slave node has a communication switch, while the master node can have multiple communication switches. The number of communication switches on the master node can be the same as the number of slave nodes. Each communication switch on the master node corresponds to a communication switch on each slave node. When a slave node communicates with the master node, it turns on its own communication switch to communicate with the master node.

[0090] After the master node allocates wireless communication frequency bands to each slave node and sends the wireless communication frequency bands to each slave node, the slave node can receive the wireless communication frequency bands allocated to it. After receiving the wireless communication frequency bands, the slave node can save the wireless communication frequency bands.

[0091] After the slave node saves the wireless communication frequency band, it can determine whether the communication period of the wireless communication frequency band is the current communication period. When the communication period of the wireless communication frequency band is the current communication period, the slave node can turn on the communication switch to communicate with the master node.

[0092] In some embodiments, the communication switch includes a transmitter and a receiver; the aforementioned opening of the communication switch to communicate with the master node includes:

[0093] Turn on the receiver and receive the master node communication message through the receiver; or,

[0094] Turn on the transmitter and send the slave node communication message to the master node through the transmitter.

[0095] In this embodiment, the slave node may turn on the receiver or transmitter when executing step S181. When the slave node needs to receive a communication message from the master node, the slave node may turn on the receiver and then receive the communication message from the master node through the receiver.

[0096] For example, when the first slave node needs to receive the master node communication message sent by the master node, and the current wireless communication frequency band is the first wireless communication frequency band, the first slave node can turn on the receiver and then receive the master node communication message sent by the master node through the receiver.

[0097] When the slave node needs to send a slave node communication message to the master node, the slave node can turn on the transmitter and then send the slave node communication message to the master node through the transmitter.

[0098] For example, when the second slave node needs to send a slave node communication message to the master node, and the current wireless communication frequency band is the second wireless communication frequency band, the second slave node can turn on the transmitter and then send the slave node communication message to the master node through the transmitter.

[0099] In a preferred embodiment, the slave node also determines whether the communication period of the wireless communication frequency band has ended; when the communication period of the wireless communication frequency band has ended, the slave node turns off the transmitter or receiver.

[0100] The present invention creates a communication frequency hopping table through a master node, wherein the communication frequency hopping table includes multiple wireless communication frequency bands, each wireless communication frequency band occupies a communication time period, and each communication time period is sorted in chronological order; a wireless communication frequency band is allocated to each slave node respectively, and each wireless communication frequency band is synchronized to each slave node; when establishing communication between the master node and the slave node, the communication switch of the current wireless communication frequency band is turned on according to the communication frequency hopping table, and the communication switches of other wireless communication frequency bands are kept closed; when communicating with the slave node through the master node, only the communication switch of the current wireless communication frequency band is turned on, while the communication switches of other wireless communication frequency bands remain closed. The master node only turns on one communication switch in one communication time period to communicate with one slave node, while the communication switches of other slave nodes are turned off, thereby reducing the communication power consumption of the wireless BMS.

[0101] The present invention also proposes a low-power communication system for a wireless BMS, wherein the low-power communication system for the wireless BMS includes a master node and multiple slave nodes, wherein the master node and the multiple slave nodes are each configured with a communication switch, and the low-power communication system for the wireless BMS can execute any one of the low-power communication methods for the wireless BMS described above.

[0102] In this embodiment, referring to Figure 7 The low-power communication method of the wireless BMS can be applied to a low-power communication system of the wireless BMS. The low-power communication system of the wireless BMS includes a master node and multiple slave nodes, and the master node and the multiple slave nodes are each configured with a communication switch.

[0103] The master node can have multiple communication switches, and the number of communication switches of the master node can be the same as the number of slave nodes; each slave node has a communication switch, and each communication switch of the master node corresponds to the communication switch of each slave node. When the master node communicates with the slave node, it only turns on the communication switch of the current wireless communication frequency band, while the communication switches of other wireless communication frequency bands remain closed. The master node only turns on one communication switch in a communication period to communicate with one slave node, while the communication switches of other slave nodes are closed, reducing the communication power consumption of the wireless BMS. Similarly, the current wireless communication frequency band will also turn on its own communication switch to communicate with the master node. Other wireless communication frequency bands will also keep their own communication switches closed.

[0104] The low-power communication device of the wireless BMS in the embodiment of the present invention may be a processor capable of running the low-power communication method of the wireless BMS; there is at least one processor. Figure 8 As shown, the low-power communication device of the wireless BMS may include: a processor 1001 (such as a CPU), a network interface 1004, a user interface 1003, a memory 1005 and a communication bus 1002. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit, such as a keyboard (Keyboard), and the user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may optionally be a storage device independent of the aforementioned processor 1001.

[0105] Those skilled in the art will understand that Figure 8 The structure of the low-power communication device of the wireless BMS shown in the figure does not constitute a limitation on the low-power communication device of the wireless BMS, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0106] like Figure 8 As shown, the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module and a computer program.

[0107] exist Figure 8 In the low-power communication device of the wireless BMS shown, the network interface 1004 is mainly used to connect to the background server and communicate data with the background server; the user interface 1003 is mainly used to connect to the client (user end) and communicate data with the client; and the processor 1001 can be used to call the computer program stored in the memory 1005. When the computer program is called and executed by the processor 1001, the steps of the low-power communication method of the wireless BMS described above are implemented.

[0108] The present invention also provides a storage medium storing a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor is enabled to execute any one of the above-mentioned low-power communication methods for a wireless BMS.

[0109] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A low-power communication method for a wireless BMS, used for a master node, wherein the master node includes a plurality of communication switches, characterized in that: The low-power communication method of the wireless BMS includes: Creating a communication frequency hopping table, wherein the communication frequency hopping table includes a plurality of wireless communication frequency bands, each of the wireless communication frequency bands occupies a communication time period, and the communication time periods are sorted in chronological order; Allocate wireless communication frequency bands to each slave node respectively, and send each wireless communication frequency band to each slave node; When establishing communication between the master node and the slave node, the communication switch of the current wireless communication frequency band is turned on according to the communication frequency hopping table, communication is performed with the slave node corresponding to the current wireless communication frequency band, and the communication switches of other wireless communication frequency bands are kept closed.

2. The low-power communication method of wireless BMS according to claim 1, characterized in that: The master node creates a communication frequency hopping table, including: determining the number of said slave nodes with which to communicate; creating one or more frequency band groups according to the number of the slave nodes; Generate the communication frequency hopping table containing one or more frequency band groups.

3. The low-power communication method of wireless BMS according to claim 2, characterized in that: Allocating wireless communication frequency bands to each slave node respectively includes: Each wireless communication frequency band in the frequency band group is allocated to each slave node respectively.

4. The low-power communication method of wireless BMS according to claim 3, characterized in that: The communication switch includes a transmitter and a receiver; the communication switch of the current wireless communication frequency band is turned on according to the communication frequency hopping table, and the communication is communicated with the slave node corresponding to the current wireless communication frequency band, including: Turning on the transmitter of the current wireless communication frequency band; The master node communication message is sent to the slave node through the transmitter.

5. The low-power communication method of wireless BMS according to claim 3, characterized in that: The communication switch includes a transmitter and a receiver; the communication switch of the current wireless communication frequency band is turned on according to the communication frequency hopping table, and the communication is communicated with the slave node corresponding to the current wireless communication frequency band, including: Turning on the receiver of the current wireless communication frequency band pair; The slave node communication message is received by the receiver.

6. The low-power communication method for a wireless BMS according to any one of claims 4 or 5, characterized in that: After turning on the communication switch of the current wireless communication frequency band according to the communication frequency hopping table and communicating with the slave node corresponding to the current wireless communication frequency band, the method further includes: Determining whether a current communication period of the current wireless communication frequency band has ended; When the current communication period of the current wireless communication frequency band ends, the transmitter or the receiver of the current wireless communication frequency band is turned off, and the current wireless communication frequency band is updated.

7. A low-power communication method for a wireless BMS, used for a slave node, wherein the slave node includes a communication switch, characterized in that: The low-power communication method of the wireless BMS includes: Receive and save wireless communication frequency bands; When the communication period of the wireless communication frequency band is the current communication period, the communication switch is turned on to communicate with the master node.

8. The low-power communication method for wireless BMS according to claim 7, characterized in that: The communication switch includes a transmitter and a receiver; turning on the communication switch to communicate with the master node includes: Turning on the receiver and receiving the master node communication message through the receiver; or, The transmitter is turned on, and a slave node communication message is sent to the master node through the transmitter.

9. A low-power communication system for a wireless BMS, characterized in that: The low-power communication system of the wireless BMS includes a master node and multiple slave nodes, and the master node and the multiple slave nodes are each configured with a communication switch. The low-power communication system of the wireless BMS can execute the low-power communication method of the wireless BMS according to any one of claims 1 to 6 or claims 7 to 8.

10. A storage medium, characterized in that: The storage medium stores a computer program, which includes program instructions. When the program instructions are executed by a processor, the processor can execute the low-power communication method for a wireless BMS according to any one of claims 1 to 6 or claims 7 to 8.

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