CN113644746A - Signal processing method, miniature circuit breaker, control method and system - Google Patents
Signal processing method, miniature circuit breaker, control method and system Download PDFInfo
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- CN113644746A CN113644746A CN202111200416.4A CN202111200416A CN113644746A CN 113644746 A CN113644746 A CN 113644746A CN 202111200416 A CN202111200416 A CN 202111200416A CN 113644746 A CN113644746 A CN 113644746A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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Abstract
The embodiment of the invention relates to the technical field of communication, and discloses a signal processing method which is applied to a miniature circuit breaker, wherein the miniature circuit breaker is connected with an external controller through a bus, and the signal processing method comprises the following steps: receiving an address sent by the controller; and if the address corresponds to a preset address in the miniature circuit breaker, receiving a control signal sent by the controller or sending a collected signal to the controller. The embodiment of the invention also discloses a miniature circuit breaker, a control method and a system. According to the signal processing method, the miniature circuit breaker, the control method and the system provided by the embodiment of the invention, the intelligent air switch is smaller in size, and occupies less site space resources; meanwhile, software is not needed to realize, and the realization cost is low.
Description
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a signal processing method, a miniature circuit breaker, a control method and a system.
Background
Beginning in 2019, the construction of a 5G network is rising worldwide, the 5G network provides higher bandwidth, lower time delay and more connections than a 4G network, but the number of micro stations is much more than 4G, so that the difficulty of implementation of a power supply of the 5G network in the aspects of site selection, deployment and maintenance is exponentially increased, and the construction and operation costs are greatly increased.
In order to save the construction cost and the operation cost, each 5G network operator has a consensus on constructing the 5G network by means of sharing cooperation. As such, a single site may include multiple operators and multiple 5G or 4G devices of different Service Levels (SLAs). The communication power supply in a single station generally supports more than twenty load branches, each load branch is defined by each 5G operator according to needs, name, capacity, authorized load access, branch metering, remote control on-off and the like, in order to achieve the functions, a key component, namely intelligent air switch, is needed, the intelligent air switch can achieve on-line monitoring and remote control of electric equipment, and the management level of safe electricity utilization is greatly improved.
However, the existing intelligent air switch solution is either oversized and occupies too much precious space resources in the site, or is realized through software, so that the realization cost is high.
Disclosure of Invention
The embodiment of the application mainly aims to provide a signal processing method, a miniature circuit breaker, a control method and a system, so that the intelligent air switch is small in size and occupies less site space resources; meanwhile, software is not needed to realize, and the realization cost is low.
In order to achieve the above object, an embodiment of the present application provides a signal processing method, which is applied to a miniature circuit breaker, where the miniature circuit breaker is connected to an external controller through a bus, and the signal processing method includes: receiving the address sent by the controller; and if the address corresponds to the preset address in the miniature circuit breaker, receiving a control signal sent by the controller or sending the acquired signal to the controller.
In order to achieve the above object, an embodiment of the present application further provides a miniature circuit breaker, where the miniature circuit breaker is connected to an external controller through a bus, and the miniature circuit breaker includes a control module, where the control module is configured to receive an address sent by the controller, and if the address corresponds to a preset address in the miniature circuit breaker, receive a control signal sent by the controller or send an acquired signal to the controller.
In order to achieve the above object, an embodiment of the present application further provides a control method, which is applied to a controller, where the controller is connected to a plurality of miniature circuit breakers through a bus, and the control method includes: sending the address of the target miniature circuit breaker, and gating the target miniature circuit breaker according to the address; and sending a control signal to the target miniature circuit breaker or receiving a signal collected by the target miniature circuit breaker.
In order to achieve the above object, an embodiment of the present application further provides a controller, where the controller is connected to the plurality of miniature circuit breakers through a bus, and the controller is configured to send an address of a target miniature circuit breaker and gate the target miniature circuit breaker according to the address; and sending a control signal to the target miniature circuit breaker or receiving a signal collected by the target miniature circuit breaker.
In order to achieve the above object, an embodiment of the present application further provides an intelligent air switch system, which includes a plurality of miniature circuit breakers, a bus and a controller, wherein the controller is connected to each of the miniature circuit breakers through the bus; the controller is used for sending an address and a control signal of the target miniature circuit breaker and receiving an acquisition signal sent by the target miniature circuit breaker; the miniature circuit breaker is used for receiving a control signal or sending a collection signal to the controller when the address corresponds to the address preset by the miniature circuit breaker.
According to the miniature circuit breaker, the miniature circuit breaker receives signals sent by an external controller through the bus, and controls or sends acquired signals to the controller according to the signals sent by the controller, so that the miniature circuit breaker can be combined with the controller and the bus to complete an intelligent air switch function without using a processor and other modules with larger sizes, the size of the miniature circuit breaker can be reduced, and the occupation of site space resources is reduced; meanwhile, the miniature circuit breaker can realize the control of the transmission of the acquired signals or the on-off of the circuit and the like through the signals transmitted by an external controller, and the realization is simpler, the realization is realized without software and an independent processor, so the realization cost is low.
Drawings
One or more embodiments are illustrated by the corresponding figures in the drawings, which are not meant to be limiting.
Fig. 1 is a schematic flow chart of a signal processing method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a miniature circuit breaker, a controller and an intelligent air switch system according to an embodiment of the present invention;
FIG. 3 is a flow chart of a control method provided by an embodiment of the invention;
fig. 4 is a specific example diagram of an intelligent air switch system provided by an embodiment of the present invention;
fig. 5 is a diagram illustrating a specific example of a miniature circuit breaker circuit according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a control module in a miniature circuit breaker according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a digital acquisition module in a miniature circuit breaker according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a digital control module in the miniature circuit breaker according to an embodiment of the present invention;
fig. 9 is a schematic diagram of an analog acquisition module in a miniature circuit breaker according to an embodiment of the present invention;
fig. 10 is a schematic diagram of an analog control module in a miniature circuit breaker according to an embodiment of the present invention;
fig. 11 is a first flowchart of a controller polling a miniature circuit breaker in the intelligent air opening system according to the embodiment of the present invention;
fig. 12 is a second flowchart of the controller polling the miniature circuit breaker in the intelligent air switch system according to the embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in the examples of the present application, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present application, and the embodiments may be mutually incorporated and referred to without contradiction.
In one embodiment, the signal processing method is applied to a miniature circuit breaker, the miniature circuit breaker is connected with an external controller through a bus, and an address sent by the controller is received, and if the address corresponds to a preset address in the miniature circuit breaker, a control signal sent by the controller is received or a collected signal is sent to the controller.
A specific flow of the signal processing method provided by the embodiment of the present invention is shown in fig. 1, and at least includes, but is not limited to, the following steps:
s101: and receiving the address sent by the controller.
S102: and if the address corresponds to the preset address in the miniature circuit breaker, receiving a control signal sent by the controller or sending the acquired signal to the controller.
When the micro circuit breaker is plural, the micro circuit breaker has a unique preset address different from other micro circuit breakers, so that the controller can control different micro circuit breakers by transmitting different address signals.
The signal that miniature circuit breaker gathered can include the collection of switching value, collection and the collection of temperature etc. wherein, the switching value is gathered and is referred to the on off state who gathers miniature circuit breaker, and the collection of electric current is referred to the electric current of gathering miniature circuit breaker corresponding load, and the collection of temperature is referred to the temperature of gathering miniature circuit breaker. The signals are collected and sent to the controller, so that the controller can control the on-off of the miniature circuit breaker according to the collected signals, and the function of air switch is achieved. Accordingly, the control signal sent by the controller is mainly a signal for controlling the on/off of the miniature circuit breaker, and can also be other control signals, such as a control signal of a fault indicator lamp. Under the condition of realizing the air switch function, the signal collected by the miniature circuit breaker and the control signal sent by the controller can be specifically set according to actual needs, and the embodiment of the invention is not limited to this.
The miniature circuit breaker receives signals sent by an external controller through the bus, and controls or sends acquired signals to the controller according to the signals sent by the controller, so that the miniature circuit breaker can be combined with the controller and the bus to complete an intelligent air switch function without using a processor and other modules with larger sizes, the size of the miniature circuit breaker can be reduced, and the occupation of site space resources is reduced; meanwhile, the miniature circuit breaker can realize the control of the transmission of the acquired signal or the on-off of the circuit and the like through the signal transmitted by an external controller, is simple to realize, does not need software, and does not need an independent processor, so the realization cost is low; in addition, the miniature circuit breaker receives the control signal or sends the collected signal when the address signal sent by the external controller corresponds to the preset address of the miniature circuit breaker, so that the miniature circuit breaker and other miniature circuit breakers can be connected in parallel under the bus for use through the division of the preset address, and the function of multi-path load is realized.
In a specific example, in S101, receiving an address sent by the controller includes: receiving a first beat signal sent by a controller; before S102, the method further includes: counting the first beat signals, and obtaining a first address according to the counting; and when receiving an address latch signal sent by the controller, latching the first address as an address.
The micro circuit breaker may include an address counter to count a first beat signal (CP) when the first beat signal is received; the miniature circuit breaker can further comprise a latch, so that when an address latch signal (BLE) sent by the controller is received, the counted address is latched; the miniature circuit breaker may further include a comparator, wherein one end of the comparator stores a preset address, and the other end is a latched address (first address), and whether the latched address is equal to the preset address or not may be judged by the comparator. It can be understood that the miniature circuit breaker only needs to realize the corresponding functions, and the embodiment of the invention does not limit the components and circuits specifically included in the miniature circuit breaker.
The method comprises the steps that a first beat signal is received, and then the counted address is compared with a preset address, so that whether the address of the controller accords with the address output by the controller or not can be determined, the controller can send the address of the miniature circuit breaker through the beat signal, and the corresponding miniature circuit breaker is gated; in addition, when the micro circuit breaker receives the address latch signal, it can be determined that the controller has finished sending the corresponding address through the beat signal.
In a specific example, the miniature circuit breaker comprises a plurality of channels, wherein each channel corresponds to a channel address; in S102, receiving a control signal sent by the controller or sending an acquired signal to the controller includes: receiving a second beat signal sent by the controller; counting the second beat signal, and obtaining a second address according to the counting; performing logical AND on the second address and the address (the first address) to obtain a target channel address; gating a channel corresponding to the miniature circuit breaker according to the target channel address; and receiving the control signal sent by the controller or sending the acquired signal to the controller according to the gated channel.
In order for the micro-breaker to accurately count the beat signals, the controller may optionally send a Reset signal (Reset, abbreviated RST) to clear the counters (including the address counter and the channel counter) and gate logic, etc., before sending the second beat signal.
When the address is equal to the preset address, the beat signal sent by the controller is continuously received to count the channel address, the target channel address can be obtained by combining the address and the second address, the gating of the corresponding channel of the miniature circuit breaker can be realized according to the target channel address, the beat signal can be multiplexed to gate the miniature circuit breaker and the channel, the miniature circuit breaker can be realized simply, software is not needed, the circuit is realized only through a pure hardware circuit, and the realization cost is reduced.
In one particular example, the miniature circuit breaker includes an analog acquisition channel; the above-mentioned channel according to gating receives the control signal that the controller sent or sends the signal of gathering to the controller, includes: when the gated channel is an analog acquisition channel, performing voltage frequency conversion on the acquired analog signal to obtain a converted analog signal; and when receiving a channel latch signal sent by the controller, sending the converted analog signal to the controller.
After the analog Signal is subjected to voltage frequency conversion, the obtained converted analog Signal is a Common Channel Signal (CCS). Because the analog signal that miniature circuit breaker gathered is voltage signal, consequently need pass through voltage frequency conversion with voltage signal, convert frequency signal and transmit on the bus. The miniature circuit breaker can include voltage frequency conversion module to can carry out voltage frequency conversion with analog signal, make things convenient for the controller to carry out corresponding collection. Because the analog signal is changed into the frequency signal after the conversion, and the frequency signal can last for a long time relative to the digital signal, therefore, in order to enable the controller to more conveniently collect the frequency signal sent by the miniature circuit breaker, the controller can send a channel latch signal firstly; correspondingly, after receiving the channel latch signal, the miniature circuit breaker sends the converted analog signal (common measurement and control signal) to the controller through the bus.
The analog signals collected by the miniature circuit breaker are subjected to voltage frequency conversion, so that the collected analog signals can be transmitted to the controller in a frequency mode through the bus, and the collection of the analog signals of the miniature circuit breaker by the controller is facilitated; and the converted analog signal is sent after the channel latch signal is received, so that the controller can more conveniently collect the continuous longer frequency signal.
In one particular example, the miniature circuit breaker includes an analog control channel; the above-mentioned channel according to gating receives the control signal that the controller sent or sends the signal of gathering to the controller, includes: when the gated channel is an analog control channel, receiving an analog control signal sent by a controller after an invalid channel latch signal is sent, wherein the analog control signal is a frequency signal subjected to voltage frequency conversion; when a channel latch signal sent by a controller is received, voltage frequency conversion is carried out on the analog control signal to obtain a converted analog control signal; controlling according to the converted analog control signal; and when receiving the invalid channel latch signal sent again by the controller, finishing the control process.
The analog control signal sent by the receiving controller after the invalid channel latch signal is sent means that the invalid channel latch signal sent by the receiving controller is received before the analog control signal is received.
The principle of the analog control is as follows: the controller firstly sends an invalid channel latch signal to ensure that the signal of the bus does not enter a control channel by mistake, and then sends an analog control signal on the bus; after the signals are stable, latching the signals through the channel latch signals; finally, outputting an invalid channel latching signal again to finish the analog control of this time. When the controller sends the signals, a certain time delay can be set between the signals to ensure that the signals can be completely transmitted and meet a certain time sequence requirement of the latch.
Similar to the previous example, the analog control signal output by the controller is a voltage signal, and needs to be converted into a frequency signal through voltage frequency conversion and then transmitted on the bus; and after receiving the corresponding analog control signal, the miniature circuit breaker converts the voltage frequency into a voltage signal to perform corresponding analog control.
By receiving an invalid channel latch signal before receiving the analog control signal, the signals of the bus can be ensured not to enter the control channel by mistake, so that the analog control signal can be conveniently and normally received; the analog control signal can be stably received by latching the signal through the channel; the analog control of this time can be finished by the output invalid channel latch signal again; through the process, the miniature circuit breaker can realize analog control through signals sent by an external controller, the realization is simple, the realization is not needed through software, and the realization cost is reduced. In addition, through voltage frequency conversion, the controller can conveniently output an analog control signal, and the micro circuit breaker can receive the analog control signal transmitted by frequency and convert the analog control signal into a voltage signal again, so that the analog control of the micro circuit breaker is realized.
In one particular example, the miniature circuit breaker includes a digital acquisition channel; receiving a control signal sent by a controller or sending a collected signal to the controller according to a gated channel, comprising: and when the gated channel is a digital acquisition channel, transmitting the acquired digital signal to the controller.
Because the digital signal can be directly transmitted on the bus, when the gated channel is a digital acquisition channel, the miniature circuit breaker can directly send the acquired digital signal to the controller.
When the gated channel is a digital acquisition channel, the acquired digital signals are sent to the controller, and the acquisition of the digital signals of the miniature circuit breaker by the controller can be realized.
In one particular example, the miniature circuit breaker further comprises a digital control channel; receiving a control signal sent by a controller or sending a collected signal to the controller according to a gated channel, comprising: when the gated channel is a digital control channel, receiving a digital control signal sent by the controller after sending an invalid channel latch signal; when a channel latch signal sent by a controller is received, controlling according to a digital control signal; and when receiving the invalid channel latch signal sent again by the controller, finishing the control process.
The principle of the digital control is basically the same as that of the analog control in the previous example, except that the digital control signal sent by the controller does not need to be converted in voltage and frequency because the digital signal can be directly transmitted on the bus, and accordingly, the micro circuit breaker does not need to convert the voltage and frequency of the digital control signal.
By receiving an invalid channel latch signal before receiving the digital control signal, the signal of the bus can be ensured not to enter the control channel by mistake, so that the normal receiving of the digital control signal is facilitated; the digital control signal can be received more stably by latching the signal through the channel; the analog control of this time can be finished by the output invalid channel latch signal again; through the process, the miniature circuit breaker can realize digital control through signals sent by an external controller, the realization is simple, the realization is not required to be realized through software, and the realization cost is reduced.
In addition, those skilled in the art can understand that the steps of the above methods are divided for clarity, and the implementation can be combined into one step or split into some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included, and the method is within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.
In one embodiment, referring to a micro circuit breaker 20, as shown in fig. 2, the micro circuit breaker 20 is connected to an external controller 30 through a bus 40, and the micro circuit breaker 20 includes a control module for receiving an address sent by the controller 30, and if the address corresponds to a preset address in the micro circuit breaker 20, receiving a control signal sent by the controller 30 or sending a collected signal to the controller 30.
Because the miniature circuit breaker 20 receives signals sent by an external controller 30 through the bus 40, and controls or sends acquired signals to the controller 30 according to the signals sent by the controller 30, the miniature circuit breaker 20 does not need a processor or other modules with larger size under the condition that the intelligent air switch function is completed by combining the controller 30 and the bus 40, so that the size of the miniature circuit breaker 20 can be reduced, and the occupation of site space resources is reduced; meanwhile, the miniature circuit breaker 20 can realize the control of the transmission of the collected signal or the on-off of the circuit and the like through the signal transmitted by the external controller 30, and the realization is simple, the realization is not required to be realized through software, and an independent processor is not required, so the realization cost is low; in addition, since the micro circuit breaker 20 receives the control signal or transmits the collected signal when the address signal transmitted by the external controller 30 corresponds to the preset address of the micro circuit breaker, the micro circuit breaker 20 and other micro circuit breakers 20 can be connected in parallel to the bus 40 for use through the differentiation of the preset addresses, thereby realizing the function of multi-path load.
In a specific example, the control module is configured to receive a first beat signal sent by the controller 30, count the first beat signal, and obtain a first address according to the count; upon receiving the address latch signal transmitted by the controller 30, the first address is latched as an address.
In one specific example, the miniature circuit breaker 20 includes a plurality of channels, each channel corresponding to a channel address; the control module is further configured to, when the address is equal to the preset address, continuously receive a second beat signal sent by the controller 30, count the second beat signal, and obtain a second address according to the count; and logically AND-connecting the second address and the address to obtain a target channel address, and gating a channel corresponding to the miniature circuit breaker 20 according to the target channel address.
In a specific example, the miniature circuit breaker 20 further includes an analog acquisition module, where the analog acquisition module corresponds to a plurality of channel addresses; the control module is also used for gating the simulation acquisition module when the target channel address corresponds to the channel address of the simulation acquisition module; the analog acquisition module is used for performing voltage frequency conversion on the acquired analog signal when the analog acquisition module is selected to obtain a converted analog signal; the channel latch signal sent from the controller 30 is received, and when the channel latch signal is received, the converted analog signal is sent to the controller 30.
In a specific example, the miniature circuit breaker 20 further includes an analog control module, where the analog control module corresponds to a plurality of channel addresses; the control module is also used for gating the simulation control module when the target channel address corresponds to the channel address of the simulation control module; the analog control module is used for receiving an analog control signal sent by the controller 30 after sending an invalid channel latch signal when being gated, performing voltage-frequency conversion on the analog control signal when receiving the channel latch signal sent by the controller 30 to obtain a converted analog control signal, and controlling according to the converted analog control signal; when receiving an invalid channel latch signal sent again by the controller 30, the present control process is ended, wherein the analog control signal is a frequency signal sent by the controller 30, and the frequency signal is a signal after voltage frequency conversion.
In a specific example, the miniature circuit breaker 20 further includes a digital acquisition module, and the digital acquisition module corresponds to a plurality of channel addresses; the control module is also used for gating the digital acquisition module when the target channel address corresponds to the channel address of the digital acquisition module; the digital acquisition module is used for sending acquired digital signals to the controller 30 when being switched on.
In a specific example, the miniature circuit breaker 20 further includes a digital control module, and the digital control module corresponds to a plurality of channel addresses; the control module is also used for gating the digital control module when the target channel address corresponds to the channel address of the digital control module; the digital control module is used for receiving a digital control signal sent by the controller 30 after sending an invalid channel latch signal when being gated, and controlling according to the digital control signal when receiving the channel latch signal sent by the controller 30; upon receiving the invalid channel latch signal sent again by the controller 30, the present control process is ended.
It should be understood that the present embodiment is a miniature circuit breaker embodiment corresponding to the embodiment of the method, and the present embodiment can be implemented in cooperation with the embodiment of the method. The related technical details mentioned in the embodiments of the foregoing method are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related art details mentioned in the present embodiment can also be applied to the embodiments of the foregoing method.
It should be noted that, all the modules involved in this embodiment are logic modules, and in practical application, one logic unit may be one physical unit, may also be a part of one physical unit, and may also be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, a unit which is not so closely related to solve the technical problem proposed by the present invention is not introduced in the present embodiment, but this does not indicate that there is no other unit in the present embodiment.
In one embodiment, the present invention relates to a control method applied to a controller, wherein the controller is connected with a plurality of miniature circuit breakers through a bus, and the control method includes: sending the address of the target miniature circuit breaker, and gating the target miniature circuit breaker according to the address; and sending a control signal to the target miniature circuit breaker or receiving a signal collected by the target miniature circuit breaker.
A specific flow of the control method provided in the embodiment of the present invention is shown in fig. 3, and at least includes, but is not limited to, the following steps:
s501: and sending the address of the target miniature circuit breaker, and gating the target miniature circuit breaker according to the address.
S502: and sending a control signal to the target miniature circuit breaker or receiving a signal collected by the target miniature circuit breaker.
According to the control method provided by the embodiment of the invention, the target miniature circuit breaker is gated by sending the address of the target miniature circuit breaker, and then the control signal is sent to the target miniature circuit breaker or the signal collected by the target miniature circuit breaker is received, so that the miniature circuit breaker can complete an intelligent air switch function by receiving the control signal sent by the controller, a processor and other modules with larger sizes are not needed, the size of the miniature circuit breaker is reduced, and the occupation of site space resources is reduced.
In a specific example, the sending of the control signal to the target micro circuit breaker or the receiving of the signal collected by the target micro circuit breaker includes: when the analog control signal is sent to the target miniature circuit breaker, voltage frequency conversion is carried out on the analog control signal to obtain a converted analog control signal; and sending the converted analog control signal to a target miniature circuit breaker.
The controller may include a voltage frequency conversion module to perform voltage frequency conversion on the analog control signal, thereby facilitating output of a corresponding analog control signal through the bus. Correspondingly, after receiving the converted analog control signal, the target miniature circuit breaker performs voltage frequency conversion to obtain the analog control signal in a voltage form so as to complete corresponding analog control.
In a specific example, the sending of the control signal to the target micro circuit breaker or the receiving of the signal collected by the target micro circuit breaker includes: when a digital signal collected by a target miniature circuit breaker is received, if the digital signal is smaller than a first threshold value, the digital signal is judged to be 0 or low level, if the digital signal is larger than a second threshold value, the digital signal is judged to be 1 or high level, and the second threshold value is larger than the first threshold value.
The first threshold may be, for example, 30% of the full scale, and when the received digital signal (common measurement and control signal) is less than 30% of the full scale, the controller may determine that the digital signal is 0 or low; the second threshold may be, for example, 70% of full scale, and when the received digital signal is greater than 70% of full scale, the controller 30 determines that the digital signal is at 1 or high level. The first threshold and the second threshold may be set according to actual needs, and this is not particularly limited in the embodiment of the present invention.
The digital signal is judged to be low level or high level according to the magnitude of the digital signal, the digital quantity can be treated as analog quantity, a digital acquisition channel and an analog control channel of the miniature circuit breaker can be further simplified, only the analog acquisition channel and the digital control channel are reserved, and therefore the structure of the miniature circuit breaker is further simplified.
It is understood that the present embodiment is a method embodiment on the controller side of the foregoing method embodiment, and the present embodiment can be implemented in cooperation with the foregoing method embodiment. The related technical details mentioned in the embodiments of the foregoing method are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related art details mentioned in the present embodiment can also be applied to the embodiments of the foregoing method.
In addition, those skilled in the art can understand that the steps of the above methods are divided for clarity, and the implementation can be combined into one step or split into some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included, and the method is within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.
In one embodiment, referring to a controller 30, and with continued reference to fig. 2, the controller 30 is connected to a plurality of micro breakers 20 via a bus 40, and the controller 30 is configured to send an address of a target micro breaker and gate the target micro breaker according to the address; and sending a control signal to the target miniature circuit breaker or receiving a signal collected by the target miniature circuit breaker.
The controller 30 provided by the embodiment of the invention gates the target miniature circuit breaker by sending the address of the target miniature circuit breaker, and then sends the control signal to the target miniature circuit breaker or receives the signal collected by the target miniature circuit breaker, so that the miniature circuit breaker 20 can complete the intelligent air switch function by receiving the control signal sent by the controller 30, a processor and other modules with larger size are not needed, the size of the miniature circuit breaker 20 is reduced, and the occupation of space resources of a station is reduced.
In a specific example, the controller 30 is further configured to perform voltage-frequency conversion on the analog control signal when sending the analog control signal to the target micro circuit breaker, so as to obtain a converted analog control signal; and sending the converted analog control signal to a target miniature circuit breaker.
In a specific example, the controller 30 is further configured to, when receiving a digital signal collected by the target micro circuit breaker, determine the digital signal as 0 or low level if the digital signal is less than a first threshold, and determine the digital signal as 1 or high level if the digital signal is greater than a second threshold, where the second threshold is greater than the first threshold.
It should be understood that the present embodiment is a controller embodiment corresponding to the control method embodiment, and the present embodiment can be implemented in cooperation with the control method embodiment. The related technical details mentioned in the foregoing control method embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related art details mentioned in the present embodiment can also be applied to the foregoing control method embodiment.
In one embodiment, referring to an intelligent air switch system, which may be referred to with continued reference to fig. 2, includes a plurality of miniature circuit breakers 20, a bus 40, and a controller 30, the controller 30 being connected to each of the miniature circuit breakers 20 through the bus 40; the controller 30 is configured to send an address and a control signal of a target miniature circuit breaker, and receive an acquisition signal sent by the target miniature circuit breaker; the micro circuit breaker 20 is configured to receive a control signal or transmit a collection signal to the controller 30 when the address corresponds to a preset address.
In a specific example, each of the micro-breakers 20 receives power from the controller 30 via VDD and GND signals on the bus 40.
The centralized power supply of the controller 30 to the micro circuit breakers 20 under the bus 40 can be achieved by VDD and GND signals of the bus 40.
In one particular example, the controller 30 is specifically configured to send the address signals and the control signals to each of the miniature circuit breakers 20 in a polling manner.
Because each miniature circuit breaker 20 corresponds to a load, the controller 30 sends an address signal and a control signal to each miniature circuit breaker 20 in a polling manner, so that the state acquisition and on-off control of each miniature circuit breaker 20 by the controller 30 can be realized, and the air switch function corresponding to each load can be realized.
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will be given by specific examples.
Please refer to fig. 4, which is a diagram illustrating an embodiment of an intelligent air switch system according to the present invention. Specifically, the controller 30 has a power supply therein, and each of the micro breakers 20 is collectively powered by VDD and GND signals of the bus 40. Since each component in each miniature circuit breaker 20 has different power requirements, the power supply of the miniature circuit breaker 20 in the figure can further convert the power provided by the controller 30 to obtain the power meeting the requirements of each component.
In a specific implementation, the controller 30 may be: the monitoring module uses a minimum measurement and control system formed based on an MCU (micro controller Unit)/DSP (Digital Signal Processing)/MPU (micro processor Unit), etc., and may be implemented by, for example, a currently mainstream Cortex-M7 single chip microcomputer, which is integrated with interfaces such as AI/DI to implement external Signal detection, and also has a multi-channel DO interface to implement power-down control, and may externally extend a communication module (such as a communication module in the figure) to support remote "telemetry", "remote signaling", "remote control", and other services; the voltage-frequency conversion module uses a chip such as a conventional VFC320 to realize the voltage-frequency conversion, and supplies power to each micro circuit breaker 20 in a bus manner through the 4812 power conversion module.
For the miniature circuit breaker 20, the following implementation can be considered:
1. because the power supply system of the intelligent air switch system supports 20-circuit micro-breaking, the address range of the micro-breaker 20 can be 0-19. If certain expansion and reservation are considered, the address range can be expanded to 0-31, namely, the 32-way miniature circuit breakers 20 are supported at maximum, the addresses of the miniature circuit breakers 20 can be prefabricated by using 5-bit dial switches, and the address counters of the miniature circuit breakers are designed to be asynchronous counters of the module 32.
2. As shown in fig. 5, since each micro circuit breaker 20 needs to collect indicator light information of breaker state, breaker temperature, shunt current, output fault, operation, etc., and perform on-off control of the output breaker, the micro circuit breaker 20 can be designed to support 5 measurement and control signals in total of 1-way switching value collection (breaker state), 2-way analog value collection (breaker temperature and shunt current), and 2-way digital value control output (breaker on-off control and breaker fault light indication). If certain expansion and reservation are considered, the channel counter may be designed as an asynchronous counter of module 32, that is, four types of signals are supported for 8-way switching value acquisition, 8-way analog value acquisition, 8-way digital value control output, and 8-way analog value control output, where the four types of signals correspond to four different channels, as shown in fig. 6, the logic circuit may be: (ii)/CLS =/RST + CS; CS1=/a 4/A3 =/CS/CLE; CS2=/a4 A3 =/CS/CLE; CS3= a 4/A3/CS; CS 4= a4 A3/CS. In fig. 6, the address counter and the channel counter may be selected from chips such as 74LS161, the latch and the comparator may be selected from chips such as 74HC573 and 74HC688, and the logic circuit may be built up from gates such as 74HC 00. These counters (address counter and channel counter), latches, comparators and Logic circuits can also be integrated into an EPLD (Erasable Programmable Logic Device)/FPGA (Field Programmable Gate Array) chip for implementation.
3. For the above four types of signals, each channel has a separate channel switching module or latch module, as each type of signal corresponds to one channel, as shown in fig. 7-10. In the specific implementation, analog quantities such as the temperature of the circuit breaker, shunt current and the like are collected, the collected analog quantities are conditioned to a certain degree, and then enter a channel switch such as a CD4051 (for example, an analog channel switching module in fig. 9), and are output from a common channel to a chip for voltage frequency conversion such as a VFC320 for voltage frequency conversion, and finally are sent to a common measurement and control channel CCS; the acquisition of digital signals and analog quantity of the state of the circuit breaker, the output of a fault indicator light, the on-off control of the circuit breaker and the like is similar, and the difference is that the step of voltage frequency conversion is not needed; as for the operation indicator light information, it is sufficient that it is directly controlled by a chip select/CS signal of the micro circuit breaker 20.
As for the bus 40, as described above, the signals on the bus 40 include 7 signals, such as a clock signal/CP, a reset signal/RST, a module address latch signal/BLE, a channel latch signal/CLE, a common measurement and control channel signal CCS, a power supply VDD, and a ground GND, so that an 8-pin bus socket may be designed to implement connection between the controller 30 and each micro circuit breaker 20. If the miniature circuit breaker 20 requires a greater number of external or expandable units, a common RJ45 port and ethernet cable may be used as a bus network for connection.
The following is a process for implementing measurement and control of 100 signals by polling 20 miniature circuit breakers 20 by a controller 30 (refer to fig. 11 and 12, and the main execution body of each step is the controller 30):
1) polling the first miniature circuit breaker 20 (address N =0, address number N =1 of the next miniature circuit breaker 20, and so on);
2) sending a reset signal/RST to reset all the miniature circuit breakers 20;
3) sending out N pulse signals/CP (if N =0, no pulse is sent out);
4) sending out a valid module address latch signal/BLE to ensure that addresses BA 0-BA 4 are effectively latched;
5) selecting channel type 1 (channel number M = K1=0, next channel number M = K2=8, and so on);
6) sending M pulses/CP (if M =0, no pulse is sent);
7) collecting a digital input signal on the channel;
8) continuously sending out 1 pulse signal/CP, collecting the next digital input signal until 8 paths of digital input signals are completely collected (if only the 1 st path of switching value collection (breaker state) needs to be collected, only the pulse/CP needs to be sent out for the following 7 times, and signals do not need to be collected);
9) selecting a channel of type 2 (channel number M = K2= 8);
10) the M pulses/CP are sent out in an accumulated mode (since the 8 pulses/CP are sent out in the previous step, the step is skipped, and the pulses are not sent out);
11) sending out an invalid channel latch signal/CLE;
12) outputting a digital control signal on the channel;
13) sending out an effective channel latch signal/CLE;
14) delaying, and sending an invalid channel latch signal/CLE;
15) continuously sending out 1 pulse/CP, outputting the next digital control signal until 8 paths of digital control signals are completely output (if only 2 paths of switch control quantity (circuit breaker on-off control and circuit breaker fault lamp indication) are required to be output, only the pulse/CP needs to be sent out for the next 6 times, and an invalid or effective channel latch signal/CLE does not need to be sent out for three times);
16) selecting a channel of type 3 (channel number M = K3= 16);
17) the M pulse signals/CP are sent out in an accumulated mode (because the 16 pulse signals/CP are sent out in the previous step, the step is skipped, and the pulse is not sent out);
18) sending out an effective channel latch signal/CLE;
19) collecting analog input frequency signals on the channel;
20) sending out an invalid channel latch signal/CLE;
21) continuously sending out 1 pulse signal/CP, collecting the next analog input signal until 8 paths of analog input signals are completely collected (if 2 paths of analog input signals (breaker temperature and shunt current) need to be collected, only sending out the pulse/CP for the next 6 times, and not sending out an invalid or valid channel latch signal/CLE for three times);
22) selecting a channel of type 4 (channel number M = K4= 24);
23) the M pulse signals/CP are sent out in an accumulated mode (since 24 pulse signals/CP are sent out in the previous step, the step is skipped, and the pulse signals are not sent out);
24) sending out an invalid channel latch signal/CLE;
25) outputting an analog control signal on the channel;
26) sending out an effective channel latch signal/CLE;
27) delaying, and sending out invalid channel latch/CLE;
28) and continuously sending out 1 pulse signal/CP, and outputting the next analog control signal until the 8 paths of analog control signals are completely output (if no analog control signal is output, all steps after the step 22 can be skipped).
It should be noted that, in the traditional data acquisition of the miniature circuit breaker, a plurality of address signal lines are required to be completed through decoding, and the cost is increased, the reliability is reduced and the maintenance is inconvenient due to excessive signal lines; the miniature circuit breaker 20 provided by the embodiment of the invention realizes the selection of the address by multiplexing the beat signal and the counter, and improves the accuracy of signal gating and the effectiveness of data transmission by adopting the technologies of address clearing, latching and the like. In addition, compared with the scheme of a pure intelligent circuit breaker module, the miniature circuit breaker 20 provided by the embodiment of the invention is not realized by a microprocessor and software, and an independent driving power supply is not required, so that the required physical space is smaller, the technology is simpler, the miniature circuit breaker can be easily realized in a plug-in mounting type structure with the current mainstream height of 1U and the width of 20 mm-60 mm, and the cooperation of multiple traditional suppliers can be easily found.
The traditional intelligent air-break scheme generally uses a plurality of bus interfaces with signal lines and requires stronger hardware interface circuit design capability; if a serial communication bus with fewer signals is used, the micro-processor and the software system on the miniature circuit breaker have larger resource requirements, and the communication protocol is greatly restricted; in the intelligent air switch system provided by the embodiment of the invention, the control signals between the controller 30 and each miniature circuit breaker 20 only need five signals, such as reset, address latch, channel latch, pulse beat, public measurement and control channel signals and the like, so that the acquisition and control of any data can be realized, a pure hardware circuit can be adopted to realize a serial interface, a few signal lines are adopted, and the use is convenient; meanwhile, the intelligent air switch system provided by the embodiment of the invention can realize data acquisition and control of the miniature circuit breaker 20 by adopting a full hardware circuit, has no MCU, does not need software execution, and has no serial port communication, so the intelligent air switch system is easy to realize, high in reliability and economical in cost; moreover, the miniature circuit breaker 20 is directly controlled by the controller 30, so that the problems of software upgrading and protocol incompatibility do not exist, the stability is high, and the cost of subsequent maintenance can be reduced; in addition, the intelligent air switch system provided by the embodiment of the invention has good flexible design and cutting performance, for example, if the control signal of the analog quantity is not required to be output, the parts of an analog addressing latch module, signal conditioning and the like can be omitted, so that the system is further simplified.
It should be understood that the present embodiment is a system embodiment corresponding to the foregoing method embodiment, and the present embodiment can be implemented in cooperation with the foregoing method embodiment. The related technical details mentioned in the foregoing method embodiments are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related art details mentioned in the present embodiment can also be applied to the foregoing method embodiments.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific embodiments for practicing the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (16)
1. A signal processing method is applied to a miniature circuit breaker, wherein the miniature circuit breaker is connected with an external controller through a bus, and the signal processing method comprises the following steps:
receiving an address sent by the controller;
and when the address corresponds to a preset address in the miniature circuit breaker, receiving a control signal sent by the controller or sending a collected signal to the controller.
2. The signal processing method of claim 1, wherein the receiving the address sent by the controller comprises:
receiving a first beat signal sent by the controller;
before the receiving the control signal sent by the controller or sending the collected signal to the controller when the address corresponds to a preset address in the miniature circuit breaker, the method further comprises:
counting the first beat signals, and obtaining a first address according to the counting;
and in the case of receiving an address latch signal sent by the controller, latching the first address as the address.
3. The signal processing method of claim 2, wherein the micro breaker comprises a plurality of channels, each channel corresponding to a channel address;
the receiving the control signal that the controller sent or sending the signal of gathering to the controller includes:
receiving a second beat signal sent by the controller;
counting the second beat signal, and obtaining a second address according to the counting;
performing logical AND on the second address and the address to obtain a target channel address;
gating a channel corresponding to the miniature circuit breaker according to the target channel address;
and receiving the control signal sent by the controller according to the gated channel or sending the acquired signal to the controller.
4. The signal processing method of claim 3, wherein the micro circuit breaker comprises an analog acquisition channel and an analog control channel, and the receiving of the control signal sent by the controller or the sending of the acquired signal to the controller according to the gated channel further comprises:
under the condition that the gated channel is the analog acquisition channel, performing voltage frequency conversion on the acquired analog signal to obtain a converted analog signal;
under the condition of receiving a channel latch signal sent by the controller, sending the converted analog signal to the controller;
or,
under the condition that the gated channel is an analog control channel, receiving an analog control signal sent by the controller after an invalid channel latch signal is sent, wherein the analog control signal is a frequency signal subjected to voltage frequency conversion;
under the condition of receiving a channel latch signal sent by the controller, performing voltage frequency conversion on the analog control signal to obtain a converted analog control signal;
controlling according to the converted analog control signal;
and under the condition of receiving the invalid channel latch signal sent again by the controller, finishing the control process.
5. The signal processing method of claim 3, wherein the micro circuit breaker comprises a digital acquisition channel and a digital control channel, and the receiving the control signal sent by the controller or sending the acquired signal to the controller according to the gated channel comprises:
under the condition that the gated channel is the digital acquisition channel, transmitting the acquired digital signal to the controller;
or,
receiving a digital control signal sent by the controller after sending an invalid channel latch signal under the condition that the gated channel is the digital control channel;
under the condition of receiving a channel latch signal sent by the controller, controlling according to the digital control signal;
and under the condition of receiving the invalid channel latch signal sent again by the controller, finishing the control process.
6. The miniature circuit breaker is characterized in that the miniature circuit breaker is connected with an external controller through a bus, and comprises a control module;
the control module is used for receiving an address sent by the controller, and receiving a control signal sent by the controller or sending a collected signal to the controller when the address corresponds to a preset address in the miniature circuit breaker.
7. The miniature circuit breaker according to claim 6, wherein said control module is configured to receive a first clock signal sent by said controller, count said first clock signal, and obtain a first address according to the count; and in the case of receiving an address latch signal sent by the controller, latching the first address as the address.
8. The miniature circuit breaker of claim 7, wherein said miniature circuit breaker comprises a plurality of channels, each channel corresponding to a channel address;
the control module is further configured to continue to receive a second beat signal sent by the controller when the address corresponds to the preset address, count the second beat signal, and obtain a second address according to the count; and logically AND the second address and the address to obtain a target channel address, and gating a channel corresponding to the miniature circuit breaker according to the target channel address.
9. The miniature circuit breaker of claim 8, further comprising an analog acquisition module, said analog acquisition module corresponding to a number of channel addresses;
the control module is also used for gating the simulation acquisition module under the condition that the target channel address corresponds to the channel address of the simulation acquisition module;
the analog acquisition module is used for performing voltage frequency conversion on the acquired analog signal under the condition of being selected to obtain a converted analog signal; and receiving a channel latch signal sent by the controller, and sending the converted analog signal to the controller under the condition of receiving the channel latch signal.
10. The miniature circuit breaker of claim 8, further comprising an analog control module, said analog control module corresponding to a number of channel addresses;
the control module is further used for gating the simulation control module under the condition that the target channel address corresponds to the channel address of the simulation control module;
the analog control module is used for receiving an analog control signal sent by the controller after sending an invalid channel latch signal under the condition of being gated, carrying out voltage frequency conversion on the analog control signal under the condition of receiving the channel latch signal sent by the controller to obtain a converted analog control signal, and controlling according to the converted analog control signal; and under the condition of receiving an invalid channel latch signal sent again by the controller, ending the control process, wherein the analog control signal is a frequency signal sent by the controller, and the frequency signal is a signal subjected to voltage frequency conversion.
11. The miniature circuit breaker of claim 8, further comprising a digital acquisition module, said digital acquisition module corresponding to a plurality of channel addresses;
the control module is also used for gating the digital acquisition module under the condition that the target channel address corresponds to the channel address of the digital acquisition module;
the digital acquisition module is used for sending acquired digital signals to the controller under the condition of being selected.
12. The miniature circuit breaker of claim 8, further comprising a digital control module, said digital control module corresponding to a plurality of channel addresses;
the control module is also used for gating the digital control module under the condition that the target channel address corresponds to the channel address of the digital control module;
the digital control module is used for receiving a digital control signal sent by the controller after sending an invalid channel latch signal under the condition of being gated, and controlling according to the digital control signal under the condition of receiving the channel latch signal sent by the controller; and under the condition of receiving the invalid channel latch signal sent again by the controller, finishing the control process.
13. A control method is applied to a controller, the controller is connected with a plurality of miniature circuit breakers through a bus, and the control method comprises the following steps:
sending an address of a target miniature circuit breaker, and gating the target miniature circuit breaker according to the address;
and sending a control signal to the target miniature circuit breaker or receiving a signal collected by the target miniature circuit breaker.
14. The control method according to claim 13, wherein the sending of the control signal to the target micro circuit breaker or the receiving of the signal collected by the target micro circuit breaker comprises:
under the condition of sending an analog control signal to the target miniature circuit breaker, performing voltage frequency conversion on the analog control signal to obtain a converted analog control signal;
and sending the converted analog control signal to the target miniature circuit breaker.
15. The method of claim 14, wherein the sending a control signal to the target micro circuit breaker or receiving a signal collected by the target micro circuit breaker further comprises:
under the condition of receiving a digital signal collected by the target miniature circuit breaker, when the digital signal is smaller than a first threshold value, the digital signal is judged to be 0 or low level, when the digital signal is larger than a second threshold value, the digital signal is judged to be 1 or high level, and the second threshold value is larger than the first threshold value.
16. An intelligent air switch-on system is characterized by comprising a plurality of miniature circuit breakers, a bus and a controller, wherein the controller is connected with each miniature circuit breaker through the bus;
the controller is used for sending an address and a control signal of a target miniature circuit breaker and receiving an acquisition signal sent by the target miniature circuit breaker;
the miniature circuit breaker is used for receiving the control signal or sending the acquisition signal to the controller under the condition that the address corresponds to the preset address.
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| CN202111200416.4A CN113644746A (en) | 2021-10-15 | 2021-10-15 | Signal processing method, miniature circuit breaker, control method and system |
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| CN202111200416.4A CN113644746A (en) | 2021-10-15 | 2021-10-15 | Signal processing method, miniature circuit breaker, control method and system |
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Application publication date: 20211112 |
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