CN112530122A

CN112530122A - Power supply control method, device and system

Info

Publication number: CN112530122A
Application number: CN202010054627.0A
Authority: CN
Inventors: 张锡权; 李先银; 梁世雄; 李教峰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-09-17
Filing date: 2020-01-17
Publication date: 2021-03-19
Anticipated expiration: 2040-01-17
Also published as: CN112530122B

Abstract

The application provides a power supply control method, a power supply control device and a power supply control system, which can solve the problem that after a power receiving terminal is completely powered on in a power supply system, the power supply system is possibly overloaded and the power receiving terminal cannot work, so that the power supply system after modification is abnormal in work, and can be applied to a fire alarm system, an access control system and the like. The method comprises the following steps: the control equipment receives a message which is sent by a power receiving terminal and is used for enabling the control equipment to determine that a first power receiving entity in the power receiving terminal is in an online state; and responding to the online message, the control equipment sends a second message to the powered terminal, wherein the second message is used for indicating a second powered entity in the powered terminal to enter a non-working state. By enabling the second power receiving entity of the power receiving terminal to enter the non-working state, the power consumption of the power receiving terminal can be reduced, and the reliability of the power supply system is improved.

Description

Power supply control method, device and system

The present application claims priority from the chinese patent application filed on 17.09.2019 under the name "power distribution method, apparatus and system for power supply", by the national intellectual property office, application No. 201910877640.3, the entire contents of which are incorporated herein by reference.

Technical Field

The present invention relates to the field of power supply control technologies, and in particular, to a power supply control method, device, and system.

Background

Fire Alarm Systems (FAS) are fire-fighting facilities that people set up in buildings or other places in order to find out a fire as early as possible and take effective measures in time, and generally include a control host and a plurality of various types of electrically powered fire-fighting terminals. However, the existing fire alarm system has many problems, such as unrefined alarm information, no first fire point record, high false alarm rate, and the like, and further measures can be taken only by manual on-site confirmation, which may possibly result in untimely fire fighting. In order to solve the above problems, Information and Communication Technologies (ICT) may be used to digitally modify the fire alarm system, such as replacing a powered terminal that does not support ICT technology with a powered fire-fighting terminal that supports ICT technology, and introducing a communication module and a control module that support ICT technology into a control host.

However, the power supply system of the existing fire alarm system is designed based on the power consumption requirement of the power receiving terminal that does not support the ICT technology, the power output power is limited, and the power consumption of the power receiving terminal that supports the ICT technology is generally greater than the power consumption of the power receiving terminal that does not support the ICT technology. Therefore, even if only some of the power receiving terminals in the fire alarm system that do not support the ICT technology are replaced with the power receiving terminals that support the ICT technology, the total power consumption of all the power receiving terminals in the modified fire alarm system may be greater than the output power of the power supply system. If all the power receiving terminals are powered on simultaneously, the problems of power overload and unreliable power supply may be caused. Such scenarios also exist in access control systems.

Disclosure of Invention

Embodiments of the present invention provide a power supply control method, device, and system, which can solve the problem that after a power receiving terminal in a power supply system is powered on, electric quantity may be overloaded.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, a power supply control method is provided: the method comprises the steps that a control device receives a first message sent by a power receiving terminal, wherein the first message is used for enabling the control device to determine that the state of a first power receiving entity in the power receiving terminal is an on-line state; in response to the first message, the control device transmits a second message to the powered terminal, the second message indicating that a second powered entity in the powered terminal enters a non-operational state.

Based on the power supply control method provided in the first aspect, the control apparatus may control the second powered entity of the powered terminal to enter the non-operating state when the state of the first powered entity of the powered terminal is the on-line state. Therefore, the power consumption of the power receiving terminal is saved, and the power in the power supply system is reduced, so that the power supply reliability is improved.

In one possible design, the second message includes an identification of the second powered entity.

Therefore, when a plurality of power receiving terminals connected to a loop of the control device are connected, or when the power receiving terminal includes a plurality of power receiving entities, the second message can be accurately sent to the specified power receiving terminal and the power receiving entity by carrying the identifier of the second power receiving entity in the second message, and the control efficiency can be improved.

In a possible design, the second message may also be used to instruct other powered entities in the powered terminal equipment, which are connected to the second powered entity or are of the same type as the second powered entity, to enter the non-operating state.

In this way, all the power receiving entities of the same type or connected in the power receiving terminal can be put into a non-operating state only through the management of the second power receiving entity. Thus, the efficiency of control can be improved.

In one possible design, the power supply control method provided in the first aspect further includes: before the control apparatus transmits the second message to the power receiving terminal, the control apparatus acquires the identifier of the second power receiving entity based on authentication of the second power receiving entity.

Through the authentication mode, the identifier of the second powered entity is obtained, the determined identifier of the second powered entity of the powered terminal can be obtained through interaction between the powered terminal and the control device, the corresponding relation between the powered terminal and the second powered entity is avoided being configured manually, and the management complexity can be reduced.

In one possible design, the method for the control apparatus of the above first aspect to acquire the identity of the second powered entity based on authentication of the second powered entity includes: the control equipment sends a power-on control message to the powered terminals according to the first message, and indicates at least one powered entity in the powered terminals to be powered on, wherein the at least one powered entity comprises a second powered entity; the control equipment receives an authentication message sent by a second powered entity, wherein the authentication message carries an identifier of the second powered entity; the control device determines that the second powered entity is authenticated according to the authentication message; in response to the second powered entity passing this result of authentication, the control device determines the validity of the identity of the second powered entity.

And the control equipment sends a power-on control message to the powered terminal to control the second powered entity to be powered on, and then the powered terminal sends an authentication message and carries the identifier of the second powered entity. The second powered entity can be powered on when needed, and the default mode of powering on the second powered entity is not needed, so that the second powered entity is powered on only when receiving the power-on control message of the control equipment while the management complexity is reduced, and the reliability of the power supply system can be ensured.

In one possible design, the second message does not include an identification of the second powered entity, the second message indicating that at least one powered entity in the powered terminal enters the inactive state, the at least one powered entity including the second powered entity.

The control equipment controls a plurality of power receiving entities in the power receiving terminal to enter a non-working state by sending an integral message to the power receiving terminal, so that the power consumption can be further reduced, and the reliability of the power supply system is improved.

In one possible design, the first message includes a presence identification indicating that the second powered entity is present. The control device transmits a second message to the power receiving terminal, including: the control device transmits a second message to the powered terminal based on the presence identifier. That is, the second message is transmitted to the power receiving terminal when the control apparatus determines that the second power receiving entity exists in the power receiving terminal.

In this way, when the control apparatus is connected to a plurality of power receiving terminals, the power-up/power-down state of the power receiving entity in the power receiving terminal can be controlled more accurately.

In one possible design, the power of the second powered entity is higher than the power of the first powered entity.

In one possible design, the power of the at least one powered entity is higher than the power of the first powered entity.

Namely, the control only enables the low-power powered entity to be powered on, so that the reliability of the power supply system is ensured, and the problem of insufficient power supply is avoided.

In one possible design, the power supply control method according to the first aspect further includes: the control equipment receives an alarm message sent by a power receiving terminal; in response to the alarm message, the control device sends an operation control message to the powered terminal for instructing the second powered entity to enter an operating state.

Through the optional mode, after the power receiving terminal detects the alarm message, a second power receiving entity, such as a high-speed communication entity and a camera, can enter a working state, the power supply reliability of the power supply system is improved, and meanwhile, the use function of the power supply system is not influenced.

In a possible design, the control device is connected to at least one powered terminal through a power supply loop, the at least one powered terminal includes the powered terminal, and the control device is configured to determine that a maximum power supply power of the power supply loop is greater than a total power-on power, where the total power-on power is a sum of power-on powers of all powered entities in the powered terminals in a powered-on state.

By determining that the maximum power supply power of the power supply loop is greater than the total power supply power of all the powered entities connected to the loop and in the powered-on state, the power supply reliability of the power supply system can be ensured, and the power supply problem of the power supply system is avoided.

In one possible design, the communication mode of the control device with the second powered entity is power line communication.

In one possible design, the control apparatus receives a third message sent by the power receiving terminal, and updates the correspondence relationship between the power receiving terminal and the second power receiving entity according to the third message. Wherein the third message includes an in-place status of the second powered entity. That is to say, after the control device monitors that the second powered entity of the powered terminal is plugged or replaced, the identifier of the second powered entity of the powered terminal may change, and the control device updates the corresponding relationship to ensure that data transmission is smoothly performed between the control device and the powered terminal.

In a second aspect, a power supply control method is provided, including: the method comprises the steps that a power receiving terminal sends a first message to a control device, wherein the first message is used for enabling the control device to determine that a first power receiving entity in the power receiving terminal is in an online state; the power receiving terminal receives a second message sent by the control equipment, wherein the second message is a response message of the first message; the second powered entity in the powered terminal enters a non-operational state according to the second message.

Based on the power supply control method provided in the second aspect, when the state of the first powered entity of the powered terminal is the online state, the first message is sent to the control device, and the control device controls the second powered entity of the powered terminal to enter the non-operating state. Therefore, the power consumption of the power receiving terminal is saved, and the power in the power supply system is reduced, so that the power supply reliability is improved.

In one possible design, the first message includes an identity of the second powered entity in place, where the identity of the second powered entity in place indicates that the second powered entity is in place.

In this way, the power receiving terminal can actively notify the control device, which includes the second power receiving entity, so that the control device can more conveniently control the power receiving terminal to power on and power off.

In one possible design, before the power receiving terminal receives the second message sent by the control apparatus, the power supply control method provided by the second aspect further includes: and the power receiving terminal sends an authentication message to the control equipment, wherein the authentication message comprises the identifier of the second power receiving entity, and the authentication message is used for indicating the control equipment to determine the validity of the identifier of the second power receiving entity according to the authentication message.

In one possible design, the power supply control method provided by the second aspect further includes: the power receiving terminal also sends an alarm message to the control equipment, wherein the alarm message is used for indicating that the power receiving terminal is in an alarm state; then, the power receiving terminal receives a work control message sent by the control device in response to the alarm information; and the second powered entity enters the working state according to the working control message.

In one possible design, the communication mode of the control device with the first powered entity is power line communication.

In one possible design, the power receiving terminal sends a third message to the control device, where the third message is used to instruct the control device to update the correspondence relationship between the power receiving terminal and the second power receiving entity. Wherein the third message includes an in-place status of the second powered entity. That is to say, after the control device monitors that the second powered entity of the powered terminal is plugged or replaced, the identifier of the second powered entity of the powered terminal may change, and the control device updates the corresponding relationship to ensure that data transmission is smoothly performed between the control device and the powered terminal.

In a third aspect, there is provided a control apparatus comprising: a processor and a low-speed communication interface. The low-speed communication interface is used for receiving a first message sent by the powered terminal, wherein the first message is used for enabling the processor to determine that a first powered entity in the powered terminal is in an online state; the processor is configured to control the control device to send a second message to the powered terminal in response to the first message, where the second message is used to instruct a second powered entity in the powered terminal to enter a non-operating state.

In one possible design, the control device further includes a high speed communication interface, the second message including an identification of the second powered entity. And a high-speed communication interface for transmitting the second message to the power-receiving terminal.

In one possible design, the processor is further configured to: an identity of the second powered entity is obtained based on the authentication of the second powered entity.

In one possible design, the processor is further configured to control the low-speed communication interface to send a power-on control message to the powered terminal, where the power-on control message indicates that at least one powered entity in the powered terminal is powered on, and the at least one powered entity includes a second powered entity; the high-speed communication interface is used for receiving an authentication message sent by the second powered entity, and the authentication message carries the identifier of the second powered entity; a processor further configured to determine that the second powered entity is authenticated according to the authentication message; the processor, in response to the second powered entity passing the result of the authentication, is further configured to determine a validity of the identification of the second powered entity.

In one possible design, the second message does not include an identification of the second powered entity, the second message is used to indicate that at least one powered entity in the powered terminal enters the non-operational state, and the at least one powered entity includes the second powered entity. And the low-speed communication interface is also used for sending a second message to the power receiving terminal.

In one possible design, the first message includes a presence identification indicating that the second powered entity is present. And a processor for controlling the control device to send a second message to the powered terminal based on the presence identifier.

In one possible design, the low-speed communication interface is further configured to receive an alarm message sent by the power receiving terminal; in response to the alarm message, the processor is further configured to control the control device to send an operation control message to the powered terminal, instructing the second powered entity to enter an operating state.

In one possible design, the control device further includes a power supply and low speed communication entity, a power line communication PLC head end communication entity. When the work control message is a power line communication carrier PLC wake-up message, the PLC head end communication entity is used for sending the PLC carrier wake-up message to the power receiving terminal; or, when the operation control message is a low-speed bus operation control message, the power supply and low-speed communication entity is configured to send the low-speed bus operation control message to the power receiving terminal.

In one possible design, the powering and low-speed communication entity is also used to power the powered terminal.

In a possible design, the control device is connected to at least one power receiving terminal through a power supply loop, and the at least one power receiving terminal includes the power receiving terminal. The processor is further configured to determine that a maximum power supply power of the power supply loop is greater than a total power-on power, where the total power-on power is a sum of power-on powers of all powered entities in the powered-on state in the at least one powered terminal.

The technical effects of the control device according to the third aspect may refer to the technical effects of the method according to any one of the possible implementation manners of the first aspect, and are not described herein again.

In a fourth aspect, there is provided a power receiving apparatus including: a sensing entity, a low speed control entity and a high speed communication entity. The low-speed control entity is used for sending a first message to the control equipment, wherein the first message is used for enabling the control equipment to determine that the sensing entity is in an online state; the power receiving device is used for receiving a second message sent by the control equipment, wherein the second message is a response message of the first message; and the high-speed communication entity enters a non-working state according to the second message.

In one possible design, the first message includes a presence identifier of the high-speed communication entity, and the presence identifier is used to indicate that the high-speed communication entity is present.

In one possible design, the second message includes an identification of the high-speed communication entity. The high-speed communication entity is used for receiving the second message and entering a non-working state according to the second message, wherein the non-working state is a dormant state.

In one possible design, the high-speed communication entity is further configured to: sending an authentication message to the control apparatus, the authentication message including an identification of the high-speed communication entity, the authentication message for instructing the control apparatus to determine validity of an identification of a second powered entity of the powered device according to the authentication message.

In one possible design, the low-speed control entity is further configured to: sending an alarm message to the control equipment, wherein the alarm message is used for indicating that the sensing entity is in an alarm state; the power receiving device is also used for receiving a work control message sent by the control equipment, wherein the work control message is a response message of the alarm message; and the high-speed communication entity is also used for entering the working state according to the working control message.

In one possible design, when the operation control message is a low-speed bus control message, the low-speed control entity is further configured to receive the low-speed bus control message; or, when the operation control message is a PLC carrier wake-up message for power line communication, the high-speed communication entity is further configured to receive the PLC carrier wake-up message.

The technical effects of the apparatus according to the fourth aspect may refer to the technical effects of the method according to any one of the possible implementation manners of the second aspect, and are not described herein again.

In a fifth aspect, there is provided a control apparatus comprising: a control unit, and a transceiver unit. The receiving and sending unit is used for receiving a first message sent by the power receiving terminal, wherein the first message is used for the control unit to determine that a first power receiving entity in the power receiving terminal is in an online state; in response to the first message, the control unit controls the transceiving unit to transmit a second message to the powered terminal, the second message being used to instruct a second powered entity in the powered terminal to enter a non-operational state.

In one possible design, before the transceiving unit sends the second message to the powered terminal, the control unit is further configured to obtain an identifier of the second powered entity based on authentication of the second powered entity.

In a possible design, the control unit is further configured to send a power-on control message to the powered terminals according to the first message, instructing at least one powered entity in the powered terminals to power on, where the at least one powered entity includes the second powered entity; the receiving and sending unit is further used for receiving an authentication message sent by a second powered entity, wherein the authentication message carries an identifier of the second powered entity; a control unit for determining that the second powered entity passes authentication according to the authentication message; the control unit, in response to the second powered entity passing the result of the authentication, is further configured to determine the validity of the identification of the second powered entity.

In one possible design, the second message does not include an identification of the second powered entity, the second message is used to instruct the powered terminal to put at least one of the powered entities into the non-operating state, and the at least one powered entity includes the second powered entity.

In one possible design, the first message includes a presence identification indicating that the second powered entity is present. And a control unit, further configured to send a second message to the powered terminal based on the presence identifier. That is, the control apparatus is controlled to transmit the second message to the power receiving terminal when the control unit determines that the second power receiving entity exists in the power receiving terminal.

In one possible design, the transceiver unit is further configured to receive an alarm message sent by the power receiving terminal. And a control unit, responsive to the alarm message, for controlling the control device to transmit an operation control message to the power receiving terminal. The operation control message is used for instructing the second powered entity to enter an operating state.

In a possible design, the control device is connected to at least one powered terminal through a power supply loop, where the at least one powered terminal includes the powered terminal, and the control unit is further configured to determine that the maximum power supply power of the power supply loop is greater than a total power supply power of all powered entities in the powered states in the powered terminals.

In a possible design, the transceiver unit is further configured to receive a third message sent by the power receiving terminal, and update the corresponding relationship between the power receiving terminal and the second power receiving entity according to the third message. Wherein the third message includes an in-place status of the second powered entity. That is to say, after the control device monitors that the second powered entity of the powered terminal is plugged or replaced, the identifier of the second powered entity of the powered terminal may change, and the control device updates the corresponding relationship to ensure that data transmission is smoothly performed between the control device and the powered terminal.

The technical effects of the apparatus according to the fifth aspect may refer to the technical effects of the method according to any one of the possible implementation manners of the first aspect, and are not described herein again.

In a sixth aspect, a power supply control system is provided, which includes a control device for implementing any one of the possible designs of the third aspect and the third aspect, and a power receiving device for implementing any one of the possible designs of the fourth aspect and the fourth aspect.

In a seventh aspect, a power supply control system is provided, which includes a control device for implementing the fifth aspect and any one of the possible designs of the fifth aspect, and a power receiving device for implementing the fourth aspect and any one of the possible designs of the fourth aspect.

In an eighth aspect, there is provided a computer-readable storage medium comprising: the computer readable storage medium has stored therein computer instructions. The computer instructions, when executed on a computer, cause the computer to perform a method as described in any one of the possible implementations of the first aspect to the second aspect.

In a ninth aspect, there is provided a computer program product comprising instructions, including a computer program or instructions, which when run on a computer, causes the computer to perform the method according to any one of the possible implementations of the first to second aspects.

Drawings

Fig. 1 is a first schematic diagram of an architecture of a power supply control system according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a second architecture of a power supply control system according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a visual smoke-sensitive terminal according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a fire fighting control host according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a control device according to an embodiment of the present disclosure;

fig. 6 is a first schematic structural diagram of a control device according to an embodiment of the present disclosure;

fig. 7 is a first flowchart illustrating a power supply control method according to an embodiment of the present disclosure;

fig. 8 is a second flowchart illustrating a power supply control method according to an embodiment of the present application;

fig. 9 is a schematic diagram of a frame format of a message according to an embodiment of the present application;

fig. 10 is a third schematic flowchart of a power supply control method according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a control device according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

In the embodiments of the present application, "information" and "message" may be mixed, and when the difference is not emphasized, the intended meaning is consistent. "of", "corresponding", "replacing", and "corresponding" may sometimes be mixed, and the intended meaning is consistent when the distinction is not emphasized. "module", "unit" and "circuit" may be mixed, and the meaning of the expression is consistent when the distinction is not emphasized. The "control host", the "control device", and the "control apparatus" may be used in combination, and the intended meanings thereof are consistent when the differences are not emphasized. The terms "plurality" or "at least one" in the present application mean two or more, and the term "/" in the present application means a relationship of "or".

In this application, the terms "first", "second", "third", and the like are used for distinguishing identical items or similar items having substantially the same functions and functions, and there is no logical or temporal dependency between "first", "second", and "third", and no limitation on the number and execution order.

In the embodiment of the present application, a part of scenarios will be described by taking a scenario in the power supply control system shown in fig. 1 as an example. The scheme in the embodiment of the application can be applied to a plurality of power supply systems, such as a fire alarm system and an access control system.

Fig. 1 is a schematic structural diagram of a power supply control system to which the power supply control method provided in the embodiment of the present application is applied. As shown in fig. 1, the batch circuit power supply system includes a power supply device and a power receiving terminal. One or more power receiving terminals shown in fig. 1 may be provided (2 power receiving terminals are shown in fig. 1). In the system, there are communication and power supply connections between a plurality of power receiving terminals and the power supply device, and the power supply device can communicate with the power receiving terminals through a Power Line Communication (PLC). PLC refers to the transmission of data or information by digital signal processing methods using existing power lines.

The power supply device may control one or more power supply loops, and one power supply loop may supply power to one or more power receiving terminals. Fig. 2 is a schematic diagram of a second architecture of a power supply control system to which the power supply control method provided in the embodiment of the present application is applied. As shown in fig. 2, the power supply device may provide two power supply loops, namely a first loop and a second loop, wherein the power supply device is connected to the first power receiving terminal and the second power receiving terminal through the first loop, and the power supply device is connected to the third power receiving terminal and the fourth power receiving terminal through the second loop. The power sourcing equipment may provide more or fewer power sourcing circuits than shown in fig. 2, and each power sourcing circuit may provide more or fewer powered terminals than shown in fig. 2.

The powered terminal shown in fig. 2 may be a powered terminal supporting ICT technology, for example, in a fire alarm system, the powered terminal may be a visual smoke-sensing terminal, a visual temperature-sensing terminal, or the like. The visual smoke sensing terminal may comprise a sensing entity, such as: smoke sensors, and modules that require high rate communication, such as cameras. For another example, in a door entry system, the powered terminal may be a visual door entry terminal, which may include a sensing entity, such as an identification sensor, and an entity requiring high-rate communication, such as a camera. The powered terminal supporting the ICT technology can collect information such as video and generally needs high-speed data communication, and therefore generally comprises a high-power module: such as a high-speed communication module and a camera, the camera may communicate with the power supply device through the high-speed communication module.

The power supply device comprises a control component, and the control component can control the power receiving terminal to perform the next action according to the signal reported by the power receiving terminal. For example, in a fire alarm system, the control component may be a control host, a server, an exchange, a router, or other devices in the fire alarm system, and for example, after the control component receives a smoke alarm reported by the power receiving terminal, the control component may control the camera of the power receiving terminal to enter a working mode, so that a fire fighter can further confirm information such as a fire point on the site through the camera. For another example, in an access control system, the control component may be a control host, a server, a switch, a router, or other devices of the access control system, for example, after the control component receives the access control alarm information reported by the power receiving terminal, the control component may control the camera of the power receiving terminal to enter a working mode, so that security personnel may further confirm whether an unauthorized person enters a building.

Of course, the power supply control system shown in fig. 1 or fig. 2 may further include a conventional power receiving terminal, that is, a power receiving terminal that does not support the ICT technology, does not have a function of collecting and transmitting alarm signals such as video or audio, and only reports a simple on-off alarm signal, if there is no fire alarm, whether the temperature exceeds the high temperature threshold, whether the smoke concentration exceeds the smoke concentration threshold, and the like. The power supply system shown in fig. 1 or fig. 2 may be a power supply system that is modified by adding a power receiving terminal that supports the ICT technology and a power supply device that supports the ICT technology on the basis of a power supply system that originally only includes a power receiving terminal that does not support the ICT technology.

The powered terminal and the power supply device supporting the ICT technology provided by the embodiment of the present application are described below with a visual smoke sensing terminal and a fire control host as examples. Fig. 3 is a schematic structural diagram of a visual smoke sensing terminal according to an embodiment of the present application. Fig. 4 is a schematic structural diagram of a fire fighting control host according to an embodiment of the present application.

As shown in fig. 3, visual smoke detection terminal 300 includes a power supply component 305; entities that do not support ICT technology, such as sensing entities, e.g., smoke sensing component 304, which may also be other sensing components, such as an acousto-optic sensing component, an identity sensing component, a temperature sensing component, etc.; a low-speed control component 302, which may also be integrated into the sensing entity, for ease of understanding, the present embodiment explains the sensing entity and the low-speed control component as two entities; and high-speed communication entities supporting ICT technology, such as a Power Line Communication (PLC) tail end high-speed communication component 301 and a camera 303, where the camera 303 can communicate with the fire control host through the PLC tail end high-speed communication component 301. The camera 303 and the PLC tail end high speed communication unit 301 may also be integrated into the same entity. In addition, the visual smoke sensing terminal 300 may further include switches, such as a first switch 306 and a second switch 307, for controlling operations of the PLC tail end high-speed communication component 301 and the camera 303. The hardware configuration shown in fig. 3 is not intended to be limiting of the visual smoke sensing terminal 300, and the visual smoke sensing terminal 300 may include more or less components than those shown, or some components may be combined or the positions of the components may be adjusted as described above.

The various components of visual smoke detection terminal 300 are described in detail below with reference to FIG. 3:

the power supply component 305 may be used to connect to power circuitry (also referred to as a circuit) to power the various components of the visual smoke sensing terminal 300. For example, the power supply section 305 may supply power to the PLC tail high-speed communication section 301 when the first switch 306 is closed. For another example, the power supply section 305 may supply power to the camera 303 when the second switch 307 is closed. The first switch 306 and the second switch 307 may be a relay, a contactor, or the like, and the implementation manner of the first switch 306 and the second switch 307 is not specifically limited in this embodiment of the application. The power supply section 305 may default to supplying power to the low-speed control section 302 and the smoke sensing section 304.

The smoke sensing part 304 may be configured to detect an environmental state around the visual smoke sensing terminal 300 and transmit detected alarm state information, for example, whether there is a smoke alarm, whether there is a high temperature alarm, whether there is a manual alarm, etc., to the low speed control part 302.

The low-speed control unit 302 is a control center of the visual smoke detector terminal 300. The low speed control component 302 may be used to monitor the alarm status of the visual smoke sensing terminal 300. For example, the low speed control component 302 transmits the alarm state information received from the smoke sensing component 304 to the fire control host. The low-speed control component 302 may also be configured to receive control commands from the fire control host and control the operation of the various modules of the visual smoke detection terminal 300 according to the control commands. For example, the low-speed control part 302 may receive a control command from the fire control host to control the closing of the first switch 306, so that the power supply part 305 supplies power to the PLC tail end high-speed communication part 301 described below. For another example, the low-speed control part 302 may receive a control command from the fire control host to control the second switch 307 to close, so that the power supply part 305 supplies power to the camera 303 described below. When the first switch 306 and the second switch 307 are both closed, the camera 303 described below may transmit a video image captured by the camera to the PLC tail end high-speed communication component 301 described below, and the video image is sent to the fire fighting control host by the PLC tail end high-speed communication component 301 described below.

Illustratively, the low-speed control component 302 and the smoke sensing component 304 are powered up by default after the fire control host is turned on. The low-speed control unit 302 and the smoke sensor unit 304 are considered to be in the on state each time the low-speed control unit 302 and the smoke sensor unit 304 are turned on the fire fighting control host.

The PLC tail high-speed communication unit 301 includes a PLC Media Access Control (MAC) communication module and a PLC Physical (PHY) communication module, and is responsible for framing, and modulation/demodulation of a PLC carrier signal. The visual smoke sensing terminal 300 may transmit high-rate alarm detailed information, for example, video image information, to the fire control host through the PLC tail end high-speed communication part 301. In addition, the PLC tail end high speed communication part 301 may also transmit the status of the PLC tail end high speed communication part 301 to the fire control host, for example, on or off, powered on or off, awake or sleeping. The PLC tail end high-speed communication component 301 may be a pluggable and replaceable module, and may also be applied to other power receiving terminals.

Illustratively, the PLC tail-end high-speed communication unit 301 enters the sleep or wake-up state in two ways: in a first mode, the low-speed control component 302 of the visual smoke-sensing terminal 300 may wake up the input end through the pin sleep of the PLC tail-end high-speed communication component 301 according to a received low-speed bus control message, such as a sleep or wake-up instruction, sent by the fire control host, to control the PLC tail-end high-speed communication component 301 to enter a wake-up or sleep state, or the low-speed bus control message is a control message that controls the first switch 306 and the second switch 307 to be turned on or off, and controls the PLC tail-end high-speed communication component 301 and the camera 303 to be powered down or powered up through turning on or off the control switch. In the second mode, the PLC tail-end high-speed communication component 301 enters a sleep or wake-up state by receiving a high-speed communication message, such as a carrier sleep or wake-up signal, sent by the fire control host.

The non-operating state of the PLC tail-end high-speed communication section 301 includes a power-down state and a sleep state. The presence or absence, power-on or power-off, wake-up or sleep state, and operating state of the PLC tail end high-speed communication unit 301 will be briefly described below with reference to fig. 3.

In-bit or out-of-bit: when the PLC tail high-speed communication unit 301 is unplugged, the PLC tail high-speed communication unit 301 is in an out-of-position state. When the PLC tail end high speed communication part 301 is plugged in or replaced, the PLC tail end high speed communication part 301 is in the on-position state.

Powering on or powering off: when the PLC tail end high speed communication part 301 can obtain the power supplied by the power supply part 305 to the PLC tail end high speed communication part 301, if the first switch 306 is closed, the PLC tail end high speed communication part 301 is in a power-on state. When the PLC tail end high-speed communication part 301 cannot obtain the power supplied by the power supply part 305 to the PLC tail end high-speed communication part 301, if the first switch 306 is turned off, the PLC tail end high-speed communication part 301 is in a power-down state.

When the PLC tail high-speed communication part 301 is in the power-on state, the PLC tail high-speed communication part 301 may be in the wake-up or sleep state.

The working state is as follows: when the PLC tail-end high-speed communication unit 301 is in a power-on and non-sleep state, the PLC tail-end high-speed communication unit 301 may enter a working state.

Awake or sleep state: when the PLC tail end high speed communication part 301 is in the sleep state, the PLC tail end high speed communication part 301 may be controlled to be in the wake-up state by the wake-up signal. Similarly, when the PLC tail high-speed communication unit 301 is in the wake-up state, the PLC tail high-speed communication unit 301 may be controlled to be in the sleep state by the sleep signal.

The transmission rate of the PLC tail end high speed communication part 301 is higher than that of the low speed control part 302, and the power consumption of the module with a high transmission rate is generally higher, that is, the power consumption of the PLC tail end high speed communication part 301 is generally higher than that of the low speed control part 302, that is, the power of the PLC tail end high speed communication part 301 is higher than that of the low speed control part 302.

The camera 303 can be used for collecting high-speed signals such as videos, pictures and sounds, and transmitting the collected information to the fire control host through the PLC tail end high-speed communication component 301. For example, the low-speed control component 302 may control the first switch 306 and the second switch 307 to be closed, the power supply component 305 may supply power to the PLC tail end high-speed communication component 301 and the camera 303, the visual smoke sensing terminal 300 or the power supply device may control the PLC tail end high-speed communication component 301 to enter the operating state, the camera 303 may transmit high-rate signals of collected videos, images, sounds and the like to the PLC tail end high-speed communication component 301, and the PLC tail end high-speed communication component 301 transmits the high-rate signals to the fire control host.

As shown in fig. 4, the control device in the embodiment of the present application may be a fire control host 400. As shown in fig. 4, the fire control host 400 includes a power supply unit 402, a control device 401, and an entity that does not support ICT technology: such as a power supply and low-speed communication entity 404, and an entity supporting ICT technology, such as a PLC head-end high-speed communication entity 403. The control device 401 includes a processor 4011, a high-speed communication interface 4012, and a low-speed communication interface 4013, and optionally, the control device 401 further includes a memory 4014. The high-speed communication interface 4012 may be an Ethernet interface, such as a Fast Ethernet (FE) interface, a Gigabit Ethernet (GE) interface, a 10GE interface, or other interfaces. The low-speed communication interface 4013 may be a universal asynchronous receiver/transmitter (universal asynchronous receiver/transmitter) interface, an ethernet interface, or the like. When the high-speed communication interface 4012 and the low-speed communication interface 4013 are both ethernet interfaces, the rate of the high-speed communication interface 4012 is higher than the rate of the low-speed communication interface 4013. The processor 4011 may be a central processor or a network processor, and the processor 4011 executes instructions to control the fire control host 400 to perform the method embodiments described in fig. 7, 8 and 10 below. Optionally, the processor 4011 is coupled to the memory 4014 and executes instructions in the memory 4014 to control the fire control host 400 to perform the method embodiments described in fig. 7, 8 and 10 below. It should be noted that the hardware configuration shown in fig. 4 does not constitute a limitation on the fire control host 400, and the fire control host 400 may include more or less entities than those shown, or some combination of entities.

The following specifically describes each component entity of the defense control host 400 with reference to fig. 4:

and a power supply part 402, which can be used for voltage conversion, and supplies power to the various parts of the fire control host 400 and the visual smoke sensing terminal 300 through power lines, and provides communication connection for communication between the fire control host 400 and the visual smoke sensing terminal 300 through the power lines. In addition, the power supply unit 402 can be connected to a backup generator set and a backup battery in the fire alarm system to improve the power supply reliability of the fire alarm system.

The control device 401 is a control center for the supply of batch circuits in the fire alarm system. The control device 401 may communicate with other components of the fire control host 400, such as the PLC head end high speed communication entity 403, the power supply and low speed communication entity 404, described below, through the high speed communication interface 4012 or the low speed communication interface 4013. For example, the processor 4011 may communicate with the powering and low speed communication entity 404 through the low speed communication interface 4013. As another example, the control device 401 can perform high-rate communication with the PLC head-end high-speed communication entity 403 through the high-speed communication interface 4012. The control apparatus 401 can also perform low-rate communication with the power receiving terminal of each power feeding loop through the power feeding and low-speed communication entity 404 and the above-described power line. The control apparatus 401 can also perform high-rate communication with the power receiving terminal of each power feeding loop through the PLC head-end high-speed communication entity 403 and the above-described power line. For example, the control apparatus 401 may control the power supply and low-speed communication entity 404 or the PLC head-end high-speed communication entity 403 described below, receive an operating state, an alarm signal, and the like reported from the power receiving terminal through the above-described power line, and transmit a control instruction to the power receiving terminal. In the embodiment of the present application, the control device 401 may be a router, a switch, a server, or the like. In addition, the control device 401 may also be applied to other control devices, such as a host of access control.

A power and low-speed communication entity 404 may be used for low-rate communication with the control device 401 and with the visual smoke sensing terminal 300. For example, the alarm status information from the visual smoke sensing terminal 300, such as whether there is a smoke alarm, whether there is a high temperature alarm, whether there is a manual alarm, etc., may be received by the power supply and low speed communication entity 404. For another example, the power supply and low-speed communication entity 404 may also send a control command to the visual smoke detector terminal 300. The control instruction may include an instruction to control the first switch 306 to be turned on or off, an instruction to control the second switch 307 to be turned on or off, and an instruction to instruct the PLC tail end high-speed communication unit 301 of the visual smoke sensing terminal 300 to enter a wake-up or sleep state, that is, a first manner in which the PLC tail end high-speed communication unit 301 enters the wake-up or sleep state.

The PLC head-end high-speed communication entity 403, which may include a PLC MAC communication module and a PLC PHY communication module, is responsible for framing, modulating, demodulating, and performing high-speed communication with the control device 401 and the visual smoke-sensitive terminal 300, respectively. For example, the PLC head-end high-speed communication entity 403 may receive high-rate alarm details, e.g., video images, etc., from the visual smoke sensing terminal 300 and may communicate the received high-rate alarm details to the control device 401. For another example, the PLC head-end high-speed communication entity 403 may receive an instruction from the control device 401, and send the instruction to the PLC tail-end high-speed communication unit 301 of the visual smoke sensation terminal 300, where the instruction may be a carrier sleep wake-up signal for controlling the PLC tail-end high-speed communication unit 301 to enter a wake-up or sleep state, that is, the above-mentioned second method for the PLC tail-end high-speed communication unit 301 to enter a wake-up or sleep state. In addition, the PLC head end high-speed communication entity 403 may also be applied to other control devices, and the control device 401 and the PLC head end high-speed communication entity 403 may also be applied to other control devices, such as an access control host, in a manner of being separately arranged as shown in fig. 4.

The control command sent by the fire control host 400 to the visual smoke sensing terminal 300 may be a frame containing multi-bit control information. For the specific implementation of the frame, reference may be made to relevant contents in the following method embodiments, which are not described herein again.

For convenience of description, components of the power receiving terminal or the control device that implement the functions of the conventional power receiving terminal may be collectively referred to as a low power consumption module, and components of the power receiving terminal or the control device that support the ICT technology may be collectively referred to as a high power consumption module. For example, in the visual smoke sensing terminal 300, components such as the low-speed control component 302, the smoke sensing component 304, and the power supply component 305 may be collectively referred to as a low power consumption module, and components such as the PLC tail end high-speed communication component 301 and the camera 303 may be collectively referred to as a high power consumption module. For example, the components such as the power supply and low-speed communication entity 404 in the fire control master 400 may be collectively referred to as a low-power module, and the components such as the control device 401 and the PLC head end high-speed communication entity 403 may be collectively referred to as a high-power module.

It should be noted that the control device 401 and the PLC head-end high-speed communication entity 403 in the fire control host 400 may be separately provided as shown in fig. 4, or may be integrated into one apparatus, and the control apparatus 510 shown in fig. 5 may be separately applied to other devices.

As shown in fig. 5, the control apparatus 510 includes a control device 511 and a PLC head-end high-speed communication entity 512. It should be noted that the hardware configuration shown in fig. 5 does not constitute a limitation on the control device 510, and the control device 510 may include more or less components than those shown, or combine some components, or arrange different components. The control device 511 may perform all functions of the control device 401, and the PLC head-end high-speed communication entity 512 may perform all functions of the PLC head-end high-speed communication entity 403, which are not described in detail herein.

It should be noted that, in the access control system, the visual access control terminal may include a power supply module, an identity sensing module, a low-speed control module, a PLC tail-end high-speed communication module, a camera, an identity sensing module, and other components. The identity sensing module may be a Radio Frequency Identification (RFID) card swiping module. The access control host can comprise a power supply component, a control component, a low-speed communication component, a PLC head end high-speed communication component and the like.

Fig. 6 is a schematic structural diagram of a control device that can be used to implement the embodiments of the present application. In one possible design, the control device may be a control apparatus supporting ICT technology, such as the control apparatus 401 shown in fig. 4 or the control apparatus 510 shown in fig. 5, or the control apparatus 600 shown in fig. 6, and may also be a chip or other component with a function of a control apparatus applied to the control apparatus.

As shown in fig. 6, the control apparatus 600 may include a processor 601, a transceiver 603, and/or a memory 602. Wherein the processor 601 is coupled to the memory 602 and the transceiver 603, such as may be connected via a communication bus.

The following describes each component of the control device 600 in detail with reference to fig. 6:

the processor 601 is a control center of the control device 600, and may be a single processor or a collective name of a plurality of processing elements. For example, the processor 601 is one or more Central Processing Units (CPUs), or may be an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application, such as: one or more microprocessors (digital signal processors, DSPs), or one or more Field Programmable Gate Arrays (FPGAs). Specifically, processor 601 may also process messages or signaling, information received from the powered terminal.

The processor 601 may perform various functions of the control apparatus 600 by running or executing software programs stored in the memory 602 and calling data stored in the memory 602, among other things.

In particular implementations, processor 601 may include one or more CPUs such as CPU0 and CPU1 shown in fig. 6 as an example.

In one implementation, the control device 600 may also include a plurality of processors, such as the processor 601 and the processor 604 shown in fig. 6, for example. Each of these processors may be a single-Core Processor (CPU) or a multi-Core Processor (CPU). A processor herein may refer to one or more communication devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

The memory 602 may be a read-only memory (ROM) or other type of static storage communication device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage communication device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc-read only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), a disk storage medium or other magnetic storage communication device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory 602 may be separate or integrated with the processor 601.

The memory 602 is used for storing software programs for implementing the scheme of the application, and is controlled by the processor 601 to execute the software programs. The specific implementation manner described above may refer to the following method embodiments, which are not described herein again.

A transceiver 603 for communication with other devices. The transceiver 603 may include a receiver to implement the receiving function and a transmitter to implement the transmitting function. In one implementation, control device 600 may also include a plurality of transceivers (not shown in fig. 6), as an example.

It should be noted that the structure of the control device 600 is not limited to the device, and the actual device may include more or less components than those shown, or some components may be combined, or different component arrangements may be adopted.

The power supply control method provided by the embodiment of the present application will be specifically described below with reference to fig. 7, and in this embodiment, the control device may also be referred to as a power supply device.

As shown in fig. 7, the power supply control method includes:

s701, the powered terminal sends a first message to the control device, where the first message indicates that a first powered entity of the powered terminal is in an online state. Accordingly, the control device receives the first message transmitted by the power receiving terminal.

The power receiving terminal comprises a first power receiving entity and a second power receiving entity. For example, in the fire alarm system, the power receiving terminal may be a fire protection terminal, such as a visual smoke detection terminal, and the control device may be a fire protection control host. In the access control system, the power receiving terminal can be an access control terminal, such as a visual access control terminal, and the power supply device can be an access control host.

Illustratively, the first powered entity may be a low power module in the powered terminal that implements the functions of a conventional powered terminal, and the second powered entity may be a high power module in the powered terminal that supports ICT technology. Referring to fig. 3, for example, the first powered entity may be the low speed control component 302, the smoke sensing component 304, and the power supply component 305 in the visual smoke sensing terminal 300, and the second powered entity may be the PLC tail end high speed communication component 301 and the camera 303 in the visual smoke sensing terminal 300.

Illustratively, the first message is registration, registration or registration information sent to the power supply terminal after the smoke sensing part 304 is on-line, indicating that it is on-line.

Optionally, the first message comprises an in-place identification of the first powered entity.

In one example, the in-place identification of the first powered entity may be 1, indicating that the first powered entity is in the in-place state.

S702, in response to the first message, the control device transmits a second message to the power receiving terminal. Accordingly, the power receiving terminal receives the second message transmitted by the control device.

The control device sends the second message in response to the first message, wherein the control device sends the second message to the power receiving terminal after receiving the first message; the second message may be sent by the control device after determining that the first power receiving entity is in the online state according to the first message and after multiple information interactions with the power receiving terminal, and the second message may also be considered as a response message of the first message.

In one possible design, when the powered terminal of the powered terminal is connected to the loop provided by the power supply device, all powered entities with power consumption equivalent to that of the second powered entity are powered on. For example, all high power consuming entities or high speed communication entities are powered up by default, including the second powered entity.

The second message is used to instruct the second powered entity to enter an inactive state, which may include a sleep state or a power down state.

Alternatively, when the control device is connected to a plurality of powered terminals, and each of the plurality of powered terminals sends a corresponding first message to the control device, the control device may send a second message only to the powered terminal whose in-place identifier includes the second powered entity in the first message.

Alternatively, when there are a plurality of power receiving entities of the same type as the second power receiving entity in the power receiving terminal, the second message sent by the control device may cause all the power receiving entities of the same type as the second power receiving entity to enter the non-operating state at a time, and in one example, the second message may include control information for turning off the first switch 306 and the second switch 307, and may cause both the PLC tail end high-speed communication part 301 and the camera 303 shown in fig. 3 to enter the non-operating state.

Optionally, the control device determines to put the second powered entity of the powered terminal into the non-operating state according to the maximum power supply that can be provided by the power supply loop.

In one example, the maximum power supply power that can be provided by the first power supply loop of the control device is 7.2 watts (watt, W), and 200 power receiving terminals are connected to the first power supply loop, and among the 200 power receiving terminals, there are 100 conventional power receiving terminals and 100 new power receiving terminals. Wherein, the power of every tradition powered terminal is 10 milliwatts (mW), and the power of the low power consumption entity in every novel powered terminal is also 10mW, and the power of the high power consumption entity in every novel powered terminal is 2W. The control device can electrify low-power-consumption entities in all traditional power receiving terminals and all novel power receiving terminals, defaults to make high-power-consumption entities of all novel power receiving terminals enter a non-working state, and guarantees that the total power consumption of the loop is not more than 7.2 w. Or the control device can electrify the low-power-consumption entities in all the traditional power receiving terminals and all the novel power receiving terminals, the consumed total power is 2W, the control device determines that only the high-power-consumption entities of 2 novel power receiving terminals are allowed to enter a working state by calculating that the difference between the total power which can be provided by the first power supply loop and the consumed total power is 5.2W, and the high-power-consumption entities of other 98 emerging power receiving terminals are allowed to enter a non-working state.

Optionally, the control device sends a second message to the power receiving terminal, including: the control device generates a second message according to the mapping relationship, and transmits the second message to the power receiving terminal. In the description of the present application, the mapping relationship may be a correspondence relationship. Accordingly, the power receiving terminal receives a second message transmitted by the control device, and includes: the power receiving terminal receives the second message transmitted by the control device according to the mapping relationship.

The manner in which the control device obtains the mapping relationship includes: in the first mode, a manager configures the mapping relation on the control device; in a second mode, the power supply device obtains the mapping relation through the received first message; in a third aspect, the control device obtains the identifier of the second powered entity through multiple communications with the powered terminal, and the identifier of the second powered entity may be, for example, an IP address, a MAC address, a name, a device identification number, a certificate, or the like of the second powered entity. For example, the control device may generate the mapping relationship in an initialization stage, and the specific implementation manner may refer to the method embodiment shown in fig. 8 described below.

Table 1 is an example of the mapping relationship provided in the embodiment of the present application. As shown in table 1, the mapping relationship includes: and the corresponding relation between the identity of the power receiving terminal and the identity of the second power receiving entity of the power receiving terminal.

Specifically, the number 1 indicates that the powered terminal 0x01 corresponds to the first powered entity 0x12-34-56-78-9 a-bc; numeral 2 indicates that the powered terminal 0x02 corresponds to the first powered entity 0x12-34-56-78-9 a-bd; numeral 3 indicates that the powered terminal 0x03 corresponds to the first powered entity 0x12-34-56-78-9 a-be.

TABLE 1

Serial number	Identity label	Identification of second powered entity
			1	0x01	0x12-34-56-78-9a-bc
2	0x02	0x12-34-56-78-9a-bd
			3	0x03	0x12-34-56-78-9a-be

For example, the control device may instruct the first powered entity to enter a power-off state, a power-on state, a sleep state, an awake state, or a working state according to a correspondence relationship between the identity of the powered terminal and the identity of the second powered entity.

Table 2 is another example of the mapping relationship provided in the embodiment of the present application. As shown in table 2, the mapping relationship includes: and the corresponding relation between the identity of the power receiving terminal and the in-place identity of the second power receiving entity of the power receiving terminal. Where 1 'b 0 indicates no bit and 1' b1 indicates a bit.

In 1' bX, b represents binary, 1 represents a 1-bit binary number, X represents a numerical value of the binary number, and X can be 0 or 1; in 2' bXX, b represents a binary number, 2 represents a 2-bit binary number, XX represents the value of the binary number, XX may be 00, 01, 10 or 11.

TABLE 2

Serial number	Identity label	In-place identification of second powered entity
			1	0x01	1’b1
2	0x02	1’b0
			3	0x03	1’b1

Specifically, the number 1 indicates that the second power receiving entity corresponding to the power receiving terminal 0x01 is in place; sequence number 2 indicates that the power receiving terminal 0x02 is not in place corresponding to the second power receiving entity; numeral 3 indicates that the power receiving terminal 0x03 is in place for the second power receiving entity.

For example, the control device may instruct the second powered entity to enter a power-down state, a power-up state, a sleep state, a wake-up state, or an operating state according to a correspondence relationship between the identity of the powered terminal and an in-place identity of the second powered entity of the powered terminal.

Optionally, the mapping relationship may further include one or more of the following: a control device identifier, a control Loop Identifier (LID), a power up/power down state of the second powered entity, a wake up/sleep state of the second powered entity, an in-place state of the second powered entity, and the like. For a specific example, refer to table 3 in the related embodiment of fig. 8 and the description of table 3, which are described below, and are not repeated here.

And S703, the powered terminal enables the second powered entity to enter a non-working state according to the second message, wherein the non-working state comprises a power-off state or a sleep state.

Taking the fire alarm system as an example, referring to fig. 3, the second powered entity may be a PLC tail end high-speed communication component 301 or a camera 303 in the visual smoke sensing terminal 300, and the first powered entity may be a low-speed control component 302, a smoke sensing component 304 or a power supply component 305 in the visual smoke sensing terminal 300.

Illustratively, after the low-speed control component 302, the smoke sensing component 304, and the power supply component 305 are on-line, the power supply device may register, establish a mapping relationship, and the like for the first powered entity, and finally, the control device controls the powered terminal to put the PLC tail end high-speed communication component 301 and/or the camera 303 into a non-operating state. For a specific implementation, reference may be made to the following S801-S807, which is not described herein again.

For example, after the low-speed control unit 302 and/or the smoke sensing unit 304 are powered off and then powered on, the control device may register the first powered entity, establish a mapping relationship, and the like again, and finally, the control device sends a second message to put the PLC tail end high-speed communication unit 301 and/or the camera 303 of the powered terminal into a non-operating state.

In one possible design method, the control method shown in fig. 7 further includes the steps of: the power receiving terminal transmits an authentication message to the control device. Accordingly, the control device receives the authentication message transmitted by the power receiving terminal, and performs access authentication on the second power receiving entity according to the authentication message.

The authentication message may include an identifier of the second powered entity, and the authentication message is used for controlling the apparatus to perform access authentication on the second powered entity.

Optionally, the authentication message may also include a communication key.

For example, the control device and the powered terminal may perform identity access authentication and communication key agreement according to a secure Datagram Transport Level Security (DTLS) protocol.

Optionally, the controlling device authenticates the second powered entity, and the authentication may be: the control device stores an identifier set of accessible powered entities, compares the identifier of the second powered entity in the authentication message with the identifier in the identifier set, and if the identifier of the second powered entity exists in the identifier set, considers that the identifier of the second powered entity is valid, and considers that the authentication of the second powered entity passes.

Optionally, the controlling device authenticates the second powered entity, and the authentication may be: the control device has stored a root certificate for authenticating access, and the authentication message includes a certificate of the second powered entity, which may also be regarded as an identifier of the second powered entity. The control device uses the certificate of the second powered entity and the root certificate to carry out verification, and if the control device considers that the certificate is matched with the root certificate, the control device considers that the identifier of the second powered entity is valid, and the control device considers that the second powered entity passes the authentication.

As to a specific implementation manner of the authentication, other implementation manners may also be available, and the embodiments of the present application are not illustrated here.

In one possible design approach, the control device may perform access authentication on the second powered entity during an initialization phase. For a specific implementation, reference may be made to S804-S805, which is not described herein again.

In one possible design approach, the communication mode between the control device and the second powered entity is power line communication.

Optionally, the communication mode between the control device and the first power receiving entity may also be power line communication.

Illustratively, the power line may be a copper-cored pvc insulation strand type flexible connection wire. The power line can realize three functions, for example, a power supply device supplies direct current (voltage, V) to a power receiving terminal, the power supply device performs low-rate communication of 1 kilobits per second (kbps) with the power receiving terminal, and the power supply device performs high-rate communication of 1.5 megabits per second (mbps) with the power receiving terminal.

In one possible design method, the power supply control method shown in fig. 7 further includes the steps of: the power receiving terminal transmits an alarm message to the control device. Correspondingly, the control device receives an alarm message sent by the power receiving terminal and sends a power-on control message to the power receiving terminal, wherein the power-on control message indicates a second power receiving entity of the power receiving terminal to be powered on; or the control device sends a wake-up message to the power receiving terminal after receiving an alarm message sent by the power receiving terminal, the wake-up message indicating that the power receiving terminal enters the working state, and the wake-up message may be a carrier wake-up message sent by the power supply device to the PLC tail end high-speed communication component of the power receiving terminal through the PLC head end high-speed communication component, or a wake-up message sent by the power supply and low-speed control entity in the control device to the low-speed control entity of the power receiving terminal.

In one possible design method, the power supply control method shown in fig. 7 further includes the steps of: the power receiving terminal transmits a third message to the control device. Accordingly, the control device receives the third message sent by the power receiving terminal and updates the mapping relation and/or the identity.

The third message includes an in-place state of the second powered entity, and the third message is used for instructing the control device to update the mapping relationship and/or the identity.

Specifically, the in-place state of the second powered entity may include: in-place, not in-place. Wherein, the second powered entity can be a pluggable and replaceable module. For example, when the second powered entity is unplugged, the second powered entity is in an off-bit state, i.e., the on-bit state of the second powered entity is not normal. For another example, when the second power receiving entity is plugged or replaced, the second power receiving entity is in the on-position state, that is, the on-position state of the second power receiving entity is normal.

Optionally, the update mapping relationship may include one or more of the following items: deleting or adding the mapping relation between the identity identification of the power receiving terminal and the identification of the second power receiving entity of the power receiving terminal, or deleting, adding or updating the identification of the second power receiving entity of the power receiving terminal.

The following is a detailed description in conjunction with several scenarios.

In scenario one, if the second powered entity is plugged or replaced, the control device updates the mapping relationship and/or the authentication message.

Taking the second powered entity as an example, if the second powered entity a is pulled down, the second powered entity of the powered terminal is in an out-of-position state. If the second power receiving entity b is inserted at this time, the second power receiving entity of the power receiving terminal is restored to the in-place state, and the control component in the power supply device updates the mapping relationship and/or the identifier of the second power receiving entity.

Taking the example of plugging and unplugging the second powered entity but not replacing the second powered entity, if the second powered entity a is unplugged, the second powered entity of the powered terminal is in an out-of-position state. Then, the second powered entity a is inserted again, the second powered entity of the powered terminal is restored to the on-site state, and the control device updates the mapping relationship.

In a second scenario, taking the power-off terminal powering back up again as an example, the power-off terminal a is controlled to power on the power-off terminal a again after powering off, which is equivalent to the power-on terminal a powering on for the first time, and then the control device updates the mapping relationship and/or the identifier of the second power-receiving entity.

Taking replacing the powered terminal as an example, the powered terminal a is controlled to be powered down, the powered terminal a is detached, the powered terminal b is installed, and after the powered terminal b is controlled to be powered up, the power supply device updates the mapping relation and/or the identifier of the second powered entity.

The control method provided by the embodiment of the present application is further described below with reference to fig. 8 to 10 by taking the fire alarm system as an example. The control method may include an initialization phase and an operating phase. The initialization stage may be configured to perform access authentication on a second powered entity of the powered terminal by the control device, and establish a mapping relationship between an identity of the powered terminal and an identifier of the second powered entity, and the working stage may be configured to control the second powered entity of the powered terminal to enter a non-working state according to the authentication message and the mapping relationship by the control device. For a specific implementation of the mapping relationship, reference may be made to the following embodiment portion shown in fig. 8, which is not described herein again.

The operation flow of the initialization phase will be described in detail below with reference to the visual smoke-sensitive terminal 300 shown in fig. 3 and the fire control host 400 shown in fig. 4 by taking a power receiving terminal as an example. In the embodiment shown in fig. 8, the control device may also be referred to as a power supply device, and as shown in fig. 8, the initialization phase may include S801-S807:

s801, a control device powers a power receiving terminal, and at least one power receiving entity of the power receiving terminal powers on, where the at least one power receiving entity includes a first power receiving entity.

The first powered entity may be a low power consumption module, such as the low speed control component 302 and the smoke sensing component 304 shown in fig. 3.

In one possible design, after the power receiving terminal is connected to the loop provided by the power supply device, all other power receiving entities with power consumption equivalent to that of the first power receiving entity are powered on.

In another possible design, referring to fig. 3 and 4, the control device 401 of the fire control host 400 may send a power-on control message to the low-speed control component 302 of the visual smoke sensing terminal 300 through its power supply and low-speed communication entity 404, so as to power on the low-power module of the power-receiving terminal, for example, the low-speed control component 302 powers on first and then controls the smoke sensing component 304 to power on.

S802, the power receiving terminal transmits a first message to the control device. Accordingly, the control device receives the first message transmitted by the power receiving terminal.

The first message is used for indicating that the first powered entity is in an online state. The power receiving terminal can transmit the above-described first message to the power supply apparatus through the low-speed control section 302.

The first powered entity being in an online state may include: the power receiving terminal is initialized to be powered on for the first time, and the power receiving terminal is powered on after power failure.

In one possible design approach, the first message further includes an in-place identification of the second powered entity.

In one possible design, when the powered terminal of the powered terminal is connected to the loop provided by the power supply device, all powered entities with power consumption equivalent to that of the second powered entity are powered on. Then the method embodiment need not perform S803.

S803, the control device sends a second message to the powered terminal, where the second message is a power-on control message. Accordingly, the power receiving terminal receives the second message transmitted by the power supply apparatus.

Illustratively, the second powered entity may be the PLC tail end high speed communication part 301 and the camera 303 in fig. 3.

Fig. 9 is a schematic diagram of a frame format of a power-on control message according to an embodiment of the present application. The power-on control message is described below with reference to fig. 9, and the frame format is also applicable to other control messages sent by the control device to the power receiving terminal or messages sent by the power receiving terminal to the control device.

As shown in fig. 9, fields in the frame format in which the low-speed control section 302 of the power receiving terminal cooperates with the power supply and low-speed communication entity 404 of the power supply terminal are defined as follows:

the frame format includes several fields, such as a start symbol, an identity of the powered terminal, data, an end symbol, etc. The start symbol is used for indicating the start of a frame format, the identity of the powered terminal is used for distinguishing different powered terminals, the end symbol is used for indicating the end of the frame format, and the data occupies 8 bits (bit) and is used for indicating a specific instruction or message. The data fields are specifically defined as follows:

[ b7, b6 ]: for indicating the frame type. Wherein, the value of 2 ' b00 indicates that the frame type is an authentication registration frame, the value of 2 ' b01 indicates that the frame type is an alarm state report frame, and the value of 2 ' b10 indicates that the frame type is an output control frame.

b 5: for instructing the second powered entity to power up/down. Wherein, taking a value of 1 'b 0 indicates powering down, and taking a value of 1' b1 indicates powering up.

b 4: for instructing the camera 303 to power up/down. Wherein, taking a value of 1 'b 0 indicates powering down, and taking a value of 1' b1 indicates powering up.

b 3: for instructing the pin control of the second powered entity to sleep/wake up. Wherein, the value of 1 'b 0 represents dormancy, and the value of 1' b1 represents awakening;

in addition, bits b2, b1, b0 are reserved.

With reference to fig. 9 and fig. 3, values of the data field in the frame carrying the second message may be: [ b7, b6] is 2 'b 10, b5 is 1' b1, b4 is 1 'b 1, and b3 is 1' b 0. That is, the frame carrying the second message is an output control frame, and controls the PLC tail end high-speed communication component 301 and the camera 303 to be powered on.

In the initialization stage, the control device controls the camera 303 of the power receiving terminal to be powered on so as to monitor whether the camera 303 is damaged. For example, if the camera 303 can send high-rate signals such as videos and images collected by the second powered entity to the power supply device, the camera 303 is not damaged.

In one possible design method, the sending, by the control device, the second message to the powered terminal may include: and the control device sends a second message to the power receiving terminal according to the identity of the power receiving terminal. For example, after receiving the id of the powered terminal, the control device directly sends a message indicating that the second powered entity of the powered terminal enters the powered-on state according to the id of the powered terminal. For another example, the control device may identify whether the second powered entity exists in the powered terminal according to the identity of the powered terminal and a message indicating the presence state of the second powered entity, and if so, instruct the second powered entity of the powered terminal to power up.

Alternatively, the control device may also perform S801 and S803 at the same time, that is, may control all of the first power receiving entity and the second power receiving entity of the power receiving terminal to be in the power-on state. Correspondingly, after the power receiving terminal receives the message indicating that the first power receiving entity and the second power receiving entity are all in the power-on state, the power receiving terminal controls the second power receiving entity to be powered on.

The control device may send a second message to the powered terminal through the power and low speed communication entity 404. Accordingly, the power receiving terminal can receive the second message from the control apparatus through the low-speed control section 302.

S804, the power receiving terminal transmits an authentication message to the control device. Accordingly, the control device receives the authentication message transmitted by the power receiving terminal.

Wherein the authentication message comprises an identification of the second powered entity.

S805, the control device performs access authentication on the second powered entity according to the authentication message.

In the above S804 and S805, the manner in which the power receiving terminal sends the authentication message to the control device and the control device enters access authentication with the second power receiving entity is as follows in the control method shown in fig. 7: the description of the part of the authentication message sent by the power receiving terminal to the control device is not repeated here.

S806, the control device generates a mapping relationship.

The mapping relationship includes a correspondence relationship between an identity of the powered terminal and an identity of the second powered entity, where the identity of the powered terminal includes the identity of the powered terminal or the identity of the second powered entity, and the identity of the second powered entity may be an in-place identity of the second powered entity and/or an identity of the second powered entity.

For specific examples of the mapping relationship, reference may be made to table 1 and table 2 in S702, and the text descriptions in table 1 and table 2, which are not described herein again.

In one possible design, as shown in table 3, in conjunction with fig. 3, the mapping relationship may further include one or more of the following: a power supply device identifier, a control Loop Identifier (LID), a power-on/power-off state of the PLC tail end high-speed communication unit 301, a wake-up/sleep state of the PLC tail end high-speed communication unit 301, a power-on/power-off state of the camera 303, and the like. The mapping shown in table 3 does not constitute a limitation of the mapping of the batch loop power supply system, and the actual mapping may include more or less than that of table 3.

Specifically, reference numerals 1 to 2 in table 3 denote PLC tail-end high-speed communication entities 0x12-34-56-78-9a-bc and PLC tail-end high-speed communication entities 0x12-34-56-78-9a-bd, which correspond to the two power receiving terminals 0x01 and 0x02 of the circuit 0x01 of the control device 0x01, respectively. The PLC tail end high-speed communication entity 0x12-34-56-78-9a-bc of the powered terminal 0x01 is in a power-on and wake-up state, and the camera 303 of the powered terminal 0x01 is in a power-on state; the PLC tail end high-speed communication entity 0x12-34-56-78-9a-bd of the powered terminal 0x02 is in a power-on and sleep state, and the camera 303 of the powered terminal 0x02 is in a power-off state. In the power-up and power-down state, 1 'b 0 represents a power-down state, and 1' b1 represents a power-up state. In the awake/sleep state, 1 'b 0 represents the sleep state, and 1' b1 represents the awake state.

Specifically, numeral 3 in table 3 indicates that the power receiving terminal 0x03 of the loop 0x02 of the power feeding device 0x01 corresponds to the PLC tail end high speed communication module 0x12-34-56-78-9 a-be. The PLC tail end high-speed communication module 0x12-34-56-78-9a-bc is in a power-on and wake-up state, and the camera 303 is in a power-on state.

TABLE 3

S807, the control device transmits a third message to the power receiving terminal. Accordingly, the power receiving terminal receives the third message transmitted by the control device.

The third message is used for indicating that the non-working state entered by the second powered entity is a power-down state or a sleep state.

In one possible design method, the sending, by the control device, the third message to the powered terminal may include: the control device may send a third message to the powered terminal through the power supply and low-speed communication entity 404, and the powered terminal receives the third message through the low-speed control component 302, and controls the second powered entity to enter a power-down or sleep state.

With reference to fig. 9 and fig. 3, values of data fields in a frame carrying the third message may be: [ b7, b6] is 2 'b 10, b5 is 1' b0, b4 is 1 'b 0, and b3 is 1' b 0. That is, the frame carrying the third message is an output control frame, and the PLC tail end high-speed communication component 301 and the camera 303 are controlled to be powered down.

Or, with reference to fig. 9 and fig. 3, values of data fields in a frame carrying the third message may be: [ b7, b6] position 2 'b 10, b5 is 1' b1, b4 is 1 'b 0, b3 is 1' b 0. That is, the frame carrying the third message is an output control frame, and controls the PLC tail-end high-speed communication section 301 to be in a sleep state and the camera 303 to be powered down.

In a possible design method, when the third message is used to indicate that the non-operating state entered by the second powered entity is the sleep state, the controlling device may send the second message to the powered terminal, where the method includes: the control apparatus may send a second message to the PLC tail end high-speed communication unit 301 of the power receiving terminal through the PLC head end high-speed communication entity 403, and the PLC tail end high-speed communication unit 301 of the power receiving terminal enters the sleep state after receiving the second message.

S801 to S807 are initialization processes of the power receiving terminal, in which the control device may further detect states of components of the power receiving terminal, for example, the control device may instruct the power receiving terminal to wake up the second power receiving entity, instruct the power receiving terminal to control the camera 303 to power on or power off, and detect whether the connection of the communication line and the power supply line is normal, and whether the second power receiving entity and the camera 303 are damaged.

Furthermore, after the control device instructs the powered terminal to control the second powered entity to power down or enter a sleep state, the powered terminal can store the authentication message, so that when the second powered entity enters the power-up state or enters an awakening state again, access authentication and communication key negotiation are avoided, the authentication time is saved, and disaster monitoring is performed quickly.

It should be noted that the mapping relationship may also be pre-configured, that is, the initialization process involved in S801-S807 described above is an optional step.

In the initialization phase, when there are multiple power receiving terminals in the power supply loop, there are multiple ways for the control device to perform access authentication on the second power receiving entity and establish a mapping relationship between the identity of the power receiving terminal and the identity of the second power receiving entity, which will be described in detail below.

In one possible design method, the control device may cause the power receiving terminal in the initialization stage to perform the above-described S801 to S807 one by one.

That is to say, the control device controls the power-on of the power-receiving terminals one by one, performs identity authentication, establishes a mapping relation, and enters a power-off or sleep state of the corresponding high-power-consumption modules until all the power-receiving terminals complete initialization operation.

In another possible design method, the control device may also calculate the number a of all components of the power receiving terminal that are allowed to be powered on at most at the same time each time according to the power consumption of each power receiving terminal and the power output power of the control device, so that the power receiving terminal in the initialization stage performs the above-mentioned S801 to S807 in batches.

The method comprises the steps of controlling the power receiving terminals to be powered on, carrying out identity authentication, establishing a mapping relation, enabling corresponding high-power-consumption modules to enter a power-off or sleep state in batches, and then controlling the next batch of power receiving terminals to carry out initialization operation, wherein the number of each batch of power receiving terminals is less than or equal to a until all the power receiving terminals finish the initialization operation.

That is to say, the control device may control the low power consumption modules of all the powered terminals to be powered on simultaneously, obtain the identifier of the powered terminal, then identify the powered terminal supporting the ICT technology according to the identifier of the powered terminal, and perform the following operations in batches or one by one for the high power consumption modules of the powered terminal supporting the ICT technology: and acquiring the identifier of the second powered entity, performing access authentication, establishing a mapping relation, controlling the high-power-consumption module to be powered off or enter a dormant state and the like until all the powered terminals complete initialization.

Based on the power supply control method described in fig. 8, in the initialization stage, the control device may control the second power receiving entity of the power receiving terminal to perform initialization operation in batches according to the state of the second power receiving entity of the power receiving terminal, and control the second power receiving entity of the power receiving terminal that completes initialization to enter the power-down state or the sleep state, so that at any time in the initialization stage, the total power consumption of the batch loop power supply system is smaller than the output power of the power supply system, so that the modified batch loop power supply system can normally operate, and thus the power supply reliability is improved.

After the above-described S801 to S807 are executed, the control device may control each power receiving terminal to enter an operating phase. Specifically, as shown in fig. 10, the working phase may include S1001-S1005, and in the embodiment shown in fig. 10, the control device may also be referred to as a power supply device:

s1001, the power receiving terminal transmits a first message to the control device. Accordingly, the control device receives the first message transmitted by the power receiving terminal.

Wherein the first message is used to indicate that the first powered entity is in an alarm state.

Exemplary alarm states may include: smoke alarm, high temperature alarm, manual alarm.

Next, communication control between the power receiving terminal and the control device will be described by taking an example in which the power receiving terminal is the visible smoke detection terminal 300 shown in fig. 3 and the control device is the fire control host 400 shown in fig. 4.

For example, taking smoke alarm as an example, the process of sending the alarm state message to the fire control host 400 by the visual smoke terminal 300 may be:

the method comprises the following steps: the smoke sensing component 304 transmits the detected smoke sensing alarm to the low speed control component 302;

step two: the low-speed control component 302 transmits the smoke detection alarm to the power supply and low-speed communication entity 404;

step three: the power supply and low speed communication entity 404 transmits the smoke alarm to the control device 401.

Note that, in order to ensure the reliability of the batch circuit power supply system, all the low power modules of the power receiving terminals may be powered up before S801 is executed. Illustratively, in conjunction with FIG. 3, the low-speed control component 302, the smoke sensing component 304, and the power component 305 of the visual smoke sensing terminal 300 are in a powered-up state.

S1002, the control device transmits a second message to the power receiving terminal. Accordingly, the power receiving terminal receives the second message transmitted by the control device.

Wherein the second message is used for indicating the second powered entity to enter the working state.

In one possible design method, the control device transmits the second message to the power receiving terminal according to the mapping relationship. Accordingly, the power receiving terminal receives the second message transmitted by the control device according to the mapping relationship. For a specific example of the mapping relationship, reference may be made to S806, which is not described herein again.

Specifically, the entering of the second powered entity into the operating state may include: when the second power receiving entity is in a power-off state, controlling the second power receiving entity to be powered on to enable the second power receiving entity to enter a working state; or when the second powered entity is in the dormant state, the second powered entity is awakened, so that the second powered entity enters the working state.

Exemplarily, in conjunction with fig. 3, the waking up the second powered entity may include: the low-speed control part 302 of the power receiving terminal controls the PLC tail end high-speed communication part 301 to enter the wake-up state by waking up the input terminal through the pin sleep of the PLC tail end high-speed communication part 301.

With reference to fig. 9 and fig. 3, values of the data field in the frame carrying the second message may be: [ b7, b6] is 2 'b 10, b5 is 1' b1, b4 is 1 'b 1, and b3 is 1' b 1. That is to say, the frame carrying the second message is an output control frame, and is used for controlling the PLC tail end high-speed communication component 301 to be powered on and enter the working state.

Exemplarily, as shown in fig. 3, the waking up the first powered entity may further include: the control device may control the PLC tail-end high-speed communication part 301 to enter a sleep/wake-up state by sending a carrier sleep/wake-up signal to the PLC tail-end high-speed communication part 301, for example, by a carrier signal.

S1003, the power receiving terminal transmits an alarm detail message to the control device. Accordingly, the control device receives the alarm detail message from the power receiving terminal.

Alternatively, the alarm detail message may include a high rate message such as a smoke density, a video image, and the like.

Illustratively, taking a video image as an example, the process of sending the alarm detailed message to the fire control host 400 by the visual smoke sensing terminal 300 may be:

step four: the camera 303 transmits the acquired video image to the PLC tail end high-speed communication component 301;

step five: the PLC tail-end high-speed communication component 301 transmits the video image to the PLC head-end high-speed communication entity 403;

step six: the PLC head end high speed communication entity 403 transmits the smoke detection alarm to the control device 401.

S1004, the control device processes the alarm detail message.

Specifically, after the control device receives the video images, the video images can be displayed on a display screen of the control device, whether a fire is on the spot or not can be quickly confirmed by watching the video images, and a fire fighter is not required to confirm the fire condition on the spot, so that the efficiency is improved.

After the fire fighter confirms that the scene is on fire through the video image, when the intensity of a fire is great, the fire extinguishing subsystem can be started to extinguish the fire. When the fire is small, people can also be arranged to take the fire hydrant to extinguish the fire on site.

The fire fighters can also confirm through the video images that the power receiving terminal sends to the control device may be a false alarm. For example, the alarm message is an alarm caused by smoking of a person around the power receiving terminal.

Alternatively, the control device may store an alarm detail message transmitted from the power receiving terminal to facilitate subsequent determination of the cause of fire, evidence collection, accountability, and the like.

In S1005, the control device transmits a third message to the power receiving terminal. Accordingly, the power receiving terminal receives the third message transmitted by the control device.

Wherein the third message is used for indicating the non-working state entered by the second powered entity. The power receiving terminal controls the second power receiving entity to power down or enter a dormant state. For a specific implementation manner of the third message, reference may be made to the above S807, which is not described herein again.

As described above, the control device controls the second power receiving entity of the power receiving terminal to enter the operating state after receiving the alarm state message sent by the power receiving terminal, and when the environment around the power receiving terminal returns to normal and the power receiving terminal stops sending the alarm state message to the power supply device, the control device may control the second power receiving entity to enter the power-off or sleep state, so as to reduce the power consumption of the power receiving terminal.

Based on the power supply control method shown in fig. 10, the control device may control the second powered entity of the powered terminal to perform power-on operation according to the alarm state message of the powered terminal. That is, on one hand, when the powered terminal is in an alarm state, the high power consumption module of the powered terminal is controlled to enter a working state so as to acquire an alarm detailed message; on the other hand, when the power receiving terminal does not give an alarm, the control device can control the high power consumption module in the power receiving terminal to enter a non-working state so as to save power consumption. Therefore, the total power consumption of the modified power supply control system does not exceed the power supply capacity, and the modified power supply system can work normally.

The power supply control method provided by the embodiment of the present application is described in detail above with reference to fig. 7 to 10. Another control device provided in the embodiment of the present application is described in detail below with reference to fig. 11.

Fig. 11 is a schematic structural diagram of a sub-control device provided in an embodiment of the present application, and in this embodiment, the sub-control device may also be referred to as a control device.

As shown in fig. 11, the control device 1100 includes: a transceiving unit 1101 and a control unit 1102.

The transceiver unit 1101 is configured to receive a first message sent by a powered terminal, where the powered terminal includes a first powered entity and a second powered entity, and the first message is used to indicate that the first powered entity is in an online state. A control unit 1102, configured to generate a second message in response to the first message, where the second message is used to instruct the second powered entity to enter an inactive state, where the inactive state includes a power-down state or a sleep state. The transceiving unit 1101 is further configured to transmit a second message to the power receiving terminal.

The control device can be applied to the power supply devices shown in fig. 1 and 2, and performs the functions of the control device in the power supply control methods shown in fig. 7, 8, and 10. And will not be described in detail herein.

The embodiment of the present application provides a chip system, where the chip system includes a processor and an input/output interface, and the processor is configured to implement the functions of the control device according to the method embodiments of fig. 7, fig. 8, and fig. 10.

In one possible design, the system-on-chip further includes a memory for storing program instructions and data implementing the functions of the above-described method embodiments.

The chip system may be constituted by a chip, or may include a chip and other discrete devices.

The embodiment of the application provides a batch loop power supply system, which comprises a control device and at least one power receiving terminal. For example, the control device may be a fire control host or an access control host, and for example, the control device may be a control device in the fire control host or a control device in the access control host. The power receiving terminal can be a visual smoke sensing terminal, a visual entrance guard terminal and the like.

An embodiment of the present application provides a computer-readable storage medium, including: the computer readable storage medium having stored therein computer instructions; when the computer instructions are run on a computer, the computer is caused to execute the power supply control method described in the above method embodiment.

The present application provides a computer program product containing instructions, including a computer program or instructions, which when run on a computer, causes the computer to execute the power supply control method described in the above method embodiments.

It should be noted that the processor in the embodiment of the present application may be a Central Processing Unit (CPU), and the processor may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be noted that the memory in the embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct bus RAM (DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware (e.g., circuitry), firmware, or any combination thereof. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer instructions or the computer program are loaded or executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more collections of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.

In the embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not limit the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A power supply control method, comprising:

the method comprises the steps that a control device receives a first message sent by a power receiving terminal, wherein the first message is used for enabling the control device to determine that a first power receiving entity in the power receiving terminal is in an online state;

in response to the first message, the control apparatus transmits a second message to the powered terminal, the second message indicating that a second powered entity in the powered terminal enters a non-operating state.

2. The method of claim 1, wherein the second message comprises an identification of the second powered entity.

3. The method according to claim 2, wherein before the control apparatus transmits the second message to the power receiving terminal, the method further comprises:

the control device acquires an identification of the second powered entity based on authentication of the second powered entity.

4. The method of claim 3, wherein the controlling device obtaining the identity of the second powered entity based on the authentication of the second powered entity comprises:

the control device sends a power-on control message to the powered terminal according to the first message, wherein the power-on control message is used for indicating at least one powered entity in the powered terminal to be powered on, and the at least one powered entity comprises the second powered entity;

the control equipment receives an authentication message sent by the second powered entity, wherein the authentication message carries an identifier of the second powered entity;

the control device determines that the second powered entity is authenticated according to the authentication message;

in response to the second powered entity passing this result of authentication, the control device determines the validity of the identity of the second powered entity.

5. The method of claim 1, wherein the second message does not include an identification of the second powered entity, wherein the second message is used to instruct at least one powered entity in the powered terminal to enter an inactive state, and wherein the at least one powered entity includes the second powered entity.

6. The method of any of claims 1-5, wherein the first message includes an in-place identity indicating that the second powered entity is in place, and wherein the controlling device sends a second message to the powered terminal, comprising:

the control device transmits the second message to the powered terminal based on the presence identifier.

7. The method according to any of claims 1-6, wherein the power of the second powered entity is higher than the power of the first powered entity.

8. The method according to any one of claims 1-7, further comprising:

the control equipment receives an alarm message sent by the power receiving terminal;

and responding to the alarm message, the control equipment sends a work control message to the powered terminal, wherein the work control message is used for indicating the second powered entity to enter a work state.

9. The method according to any one of claims 1 to 8, wherein the control device is connected to at least one powered terminal through a power supply loop, the at least one powered terminal including the powered terminal, the method further comprising:

the control device determines that the maximum power supply power of the power supply loop is greater than a total power-on power, where the total power-on power is a sum of power-on powers of all powered entities in the powered-on state in the at least one powered terminal.

10. A power supply control method, comprising:

a power receiving terminal sends a first message to a control device, wherein the first message is used for enabling the control device to determine that a first power receiving entity in the power receiving terminal is in an online state;

the power receiving terminal receives a second message sent by the control equipment, wherein the second message is a response message of the first message;

and a second power receiving entity in the power receiving terminal enters a non-working state according to the second message.

11. The method of claim 10, wherein the first message comprises an identity of the second powered entity in place, and wherein the identity of the second powered entity in place indicates that the second powered entity is in place.

12. The method of claim 10 or 11, wherein the second message comprises an identification of the second powered entity.

13. The method according to claim 12, wherein before the power-supplied terminal receives the second message transmitted by the control apparatus, the method further comprises:

and the power receiving terminal sends an authentication message to the control equipment, wherein the authentication message comprises the identifier of the second power receiving entity, and the authentication message is used for indicating the control equipment to determine the validity of the identifier of the second power receiving entity according to the authentication message.

14. The method according to any one of claims 10-13, further comprising:

the power receiving terminal sends an alarm message to the control equipment, wherein the alarm message is used for indicating that the power receiving terminal is in an alarm state;

the power receiving terminal receives a work control message sent by the control equipment, wherein the work control message is a response message of the alarm message;

and the second powered entity enters a working state according to the working control message.

15. A control device, comprising: a processor and a low-speed communication interface,

the low-speed communication interface is configured to receive a first message sent by a powered terminal, where the first message is a message for enabling the processor to determine that a first powered entity in the powered terminal is in an online state;

the processor is configured to control the control device to send a second message to the powered terminal in response to the first message, where the second message is used to instruct a second powered entity in the powered terminal to enter a non-operating state.

16. The apparatus of claim 15, wherein the control apparatus further comprises a high speed communication interface, wherein the second message comprises an identification of the second powered entity,

the high-speed communication interface is configured to send the second message to the power receiving terminal.

17. The apparatus of claim 16, wherein the processor is further configured to:

obtaining an identification of the second powered entity based on authentication of the second powered entity.

18. The apparatus of claim 17,

the processor is further configured to control the low-speed communication interface, and send a power-on control message to the powered terminal, where the power-on control message is used to instruct at least one powered entity in the powered terminal to power on, where the at least one powered entity includes the second powered entity;

the high-speed communication interface is further configured to receive an authentication message sent by the second powered entity, where the authentication message carries an identifier of the second powered entity;

the processor is further configured to determine that the second powered entity is authenticated according to the authentication message;

the processor is further configured to determine validity of the identification of the second powered entity in response to the result that the second powered entity is authenticated.

19. The apparatus of claim 15, wherein the second message does not include an identification of the second powered entity, wherein the second message is used to instruct at least one of the powered terminals to enter an inactive state, wherein the at least one powered entity includes the second powered entity,

the low-speed communication interface is further configured to send the second message to the powered terminal.

20. The apparatus of any one of claims 15-19,

the first message includes a presence identification indicating that the second powered entity is present,

the processor is configured to control the control device to send the second message to the powered terminal based on the presence identifier.

21. The apparatus according to any of claims 15-20, wherein the power of the second powered entity is higher than the power of the first powered entity.

22. The apparatus according to any one of claims 15-21, wherein:

the low-speed communication interface is also used for receiving an alarm message sent by the power receiving terminal;

the processor is further configured to control the control device to send a work control message to the powered terminal in response to the alarm message, where the work control message is used to instruct the second powered entity to enter a working state.

23. The apparatus of claim 22, further comprising: a power supply and low speed communication entity, a power line communication PLC head end communication entity,

the working control message is a power line communication carrier PLC wake-up message, and the PLC head end communication entity is used for sending the PLC carrier wake-up message to the power receiving terminal; or the like, or, alternatively,

the working control message is a low-speed bus working control message, and the power supply and low-speed communication entity is used for sending the low-speed bus working control message to the power receiving terminal.

24. The apparatus of claim 23, wherein the powering and low-speed communication entity is further configured to power the powered terminal.

25. The apparatus of any of claims 15-24, wherein the apparatus is coupled to at least one powered terminal via a power supply loop, the at least one powered terminal comprising the powered terminal,

the processor is further configured to determine that a maximum power supply power of the power supply loop is greater than a total power-on power, where the total power-on power is a sum of power-on powers of all powered entities in the at least one powered terminal in a powered-on state.

26. A power receiving device, comprising: a sensing entity, a low-speed control entity and a high-speed communication entity,

the low-speed control entity is configured to send a first message to a control device, where the first message is a message for enabling the control device to determine that the sensing entity is in an online state;

the power receiving device is configured to receive a second message sent by the control apparatus, where the second message is a response message of the first message;

and the high-speed communication entity is used for entering a non-working state according to the second message.

27. The apparatus of claim 26, the first message comprises an in-place identification of the high speed communication entity, the in-place identification indicating that the high speed communication entity is in place.

28. The apparatus according to claim 26 or 27, wherein the second message comprises an identification of the high speed communication entity,

the high-speed communication entity is used for receiving the second message;

and the high-speed communication entity is also used for entering a non-working state according to the second message, wherein the non-working state is a dormant state.

29. The apparatus of claim 28, wherein the high-speed communication entity is further configured to:

sending an authentication message to the control apparatus, the authentication message including an identifier of the high-speed communication entity, the authentication message being used to instruct the control apparatus to determine validity of an identifier of a second power receiving entity of the power receiving device according to the authentication message.

30. The apparatus of any one of claims 26-29,

the low-speed control entity is further configured to: sending an alarm message to the control equipment, wherein the alarm message is used for indicating that the sensing entity is in an alarm state;

the power receiving device is further configured to receive a work control message sent by the control apparatus, where the work control message is a response message of the alarm message;

and the high-speed communication entity is also used for entering a working state according to the working control message.

31. The apparatus of claim 30,

the working control message is a low-speed bus control message, and the low-speed control entity is also used for receiving the low-speed bus control message; or the like, or, alternatively,

the work control message is a power line communication PLC carrier wake-up message, and the high-speed communication entity is further used for receiving the PLC carrier wake-up message.

32. A power supply control system comprising the control device according to any one of claims 15 to 25 and the power receiving device according to any one of claims 26 to 31.