A time-sharing start control device and system

Abstract

The application discloses a time-sharing starting control device and system, and belongs to the control field. The time-sharing starting control device and system adopt an intelligent control mode based on the Internet of Things and edge computing, realize microsecond-level accurate time-sharing control starting of lower-level equipment and a power grid, realize power grid load peak-shifting, intelligent monitoring equipment time-sharing data receiving and sending, guarantee safety production, realize time-sharing starting of upper-level and lower-level power grids and time-sharing data receiving and sending of intelligent terminal equipment, simultaneously monitor the state of the power grid, guarantee safety production, and the time-sharing starting control device provides time-sharing power supply and simultaneously monitors the state of the power grid in real time, realizes double functions of an intelligent sensor and an intelligent controller.

Description

Technical Field

[0001] This invention belongs to the field of control, and more specifically, relates to a time-sharing start control device and system. Background Technology

[0002] Production and living electrical equipment and facilities, as well as digital monitoring instruments, often start up synchronously with the main power distribution equipment, causing a sudden surge in the power grid load. Taking digital monitoring instruments as an example, when the number of digital monitoring instruments is large, synchronous startup will lead to data transmission conflicts between the digital monitoring equipment, affecting safe production. Summary of the Invention

[0003] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides a time-sharing start-up control device and system, thereby resolving the data transmission conflicts caused by the synchronous start-up of intelligent sensors and electrical equipment in various production and daily life scenarios, as well as the grid overload caused by the synchronous start-up of downstream power grids.

[0004] To achieve the above objectives, according to a first aspect of the present invention, a time-sharing start control device is provided, comprising:

[0005] The time-domain differential module includes a time-domain differential converter and multiple switches;

[0006] The controller is connected to the upstream power grid and is used to output time-sharing control commands to the time-domain differential unit. The time-domain differential unit controls the multiple switches to close in a time-sharing manner according to the time-sharing control commands.

[0007] The power grid status sensing module is used to acquire the load of the upstream and downstream power grids and the on / off status of each switch;

[0008] The digital information module is used to convert the upstream and downstream power grid loads and the on / off status of each switch into digital information and add data identifiers; wherein, the data identifiers are the device's identification codes;

[0009] The wireless transmission module is used to send digital information with data identifiers to the backend.

[0010] Preferably, the switch is a relay or a silicon controlled rectifier (SCR).

[0011] Preferably, a UPS power supply is also included.

[0012] According to a second aspect of the present invention, a time-sharing start control system is provided, comprising: a multi-level time-sharing control unit; each level of the time-sharing control unit includes at least one time-sharing start control device as described in the first aspect;

[0013] In the nth-level time-sharing control unit, the controller of the time-sharing start control device is connected to any switch of the time-domain differential module of any time-sharing start control device in the (n-1)th-level time-sharing control unit, where n>1; in the first-level time-sharing control unit, the controller of the time-sharing start control device is connected to the upper-level power grid;

[0014] In the m-th level time-sharing control unit, any switch of the time-domain differential module of the time-sharing start control device is connected to the controller of the time-sharing start control device of the (m+1)-th level time-sharing control unit; m≥1.

[0015] Preferably, in the m-th level time-sharing control unit, the other switches of the time-domain differential module of the time-sharing start control device are connected to at least one electrical device.

[0016] Preferably, the upstream power grid is connected to at least one electrical device.

[0017] Preferably, the electrical equipment is a digital monitoring instrument.

[0018] According to a second aspect of the present invention, an electronic device is provided, comprising: a computer-readable storage medium and a processor;

[0019] The computer-readable storage medium is used to store executable instructions;

[0020] The processor is configured to read executable instructions stored in the computer-readable storage medium and execute the method as described in the first aspect.

[0021] According to a third aspect of the invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions for causing a processor to perform the method as described in the first aspect.

[0022] According to a fourth aspect of the invention, a computer program product is provided, comprising a computer program or instructions that, when executed by a processor, implement the method described in the first aspect.

[0023] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0024] To address the issues of data transmission conflicts caused by the simultaneous startup of smart sensors and terminal equipment (i.e., electrical equipment) in various production and daily life scenarios, and the grid overload caused by the simultaneous startup of downstream power grids, this invention provides a time-sharing startup control device and system. This device uses a controller to differentially schedule the startup times of upstream and downstream, and same-level, power grids and equipment power supplies, enabling staggered startup of various electrical equipment and downstream power grids. This eliminates the overload caused by the simultaneous startup of numerous terminal devices and forces smart sensors to achieve time-domain separation of data transmission through time-sharing startup, thus avoiding data transmission conflicts. Simultaneously, the device connects to sensors to monitor the grid status and wirelessly transmits the monitored data to the backend for management after labeling. Attached Figure Description

[0025] Figure 1 This is one of the functional module diagrams of the time-sharing start control device provided in an embodiment of the present invention.

[0026] Figure 2 This is the second schematic diagram of the functional modules of the time-sharing start-up control device provided in an embodiment of the present invention.

[0027] Figure 3 This is one of the structural schematic diagrams of the time-sharing start-up control system provided in an embodiment of the present invention.

[0028] Figure 4 This is the second schematic diagram of the time-sharing start-up control system provided in an embodiment of the present invention. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0030] This invention provides a time-sharing start control device, such as... Figures 1-2 As shown, it includes:

[0031] The time-domain differential module includes a time-domain differential converter and multiple switches;

[0032] The controller is connected to the upstream power grid and is used to output time-sharing control commands to the time-domain differential unit. The time-domain differential unit controls the multiple switches to close in a time-sharing manner according to the time-sharing control commands.

[0033] The power grid status sensing module includes upstream and downstream power grid load and switch on / off status sensing devices, used to acquire upstream and downstream power grid load and the on / off status of each switch;

[0034] The digital information module is used to convert the upstream and downstream grid loads and the on / off status of each switch obtained by the grid status sensing module into digital information and add data identifiers; wherein, the data identifiers are the identification codes of the time-sharing start control device itself.

[0035] The wireless transceiver module is used to send digital information with data identifiers to the backend for management.

[0036] Preferably, the switch is a relay or a silicon controlled rectifier (SCR).

[0037] Preferably, it also includes a UPS power supply, which is adapted to the low-voltage uninterruptible DC power supply of each module of the control device, and is used to power the controller and each module of the time-sharing start device.

[0038] Specifically, the time-sharing start control device provided by the present invention has a switch in its time-domain differential module that can be connected to the electrical equipment. Through the combination of the controller and the relay or thyristor, the controller’s crystal oscillator microsecond-level time-sharing capability drives the same level power grid line to start the relay or thyristor in a time-sharing manner, ensuring that the same level power supply is time-sharing and the load is staggered.

[0039] The time-sharing start control device provided by the present invention can also have its switches in the time-domain differential module connected to the controllers of other time-sharing start control devices to achieve multi-level, top-down time-sharing control.

[0040] The controller is used to determine the time-sharing start time of each switch based on the number of electrical devices connected to the switch and the execution cycle of the embedded software. If the start time of the upstream power grid connected to the controller is in the second range, the time-sharing start time of each switch determined by the controller is in the millisecond range. If the start time of the upstream power grid connected to the controller is in the millisecond range, the time-sharing start time of each switch determined by the controller can be in the millisecond range or microsecond range, etc.

[0041] The controller can be any existing controller, such as PLC, MCU, etc. For example, a PLC with no less than 28 ports and a crystal oscillator of 16M or above can be used.

[0042] The time-sharing start control devices provided by this invention can be connected in series or in parallel to achieve unlimited expansion of time-sharing. Based on this, embodiments of this invention provide a time-sharing start control system, including: a multi-level time-sharing control unit; each level of time-sharing control unit includes at least one time-sharing start control device as described in any of the above embodiments.

[0043] In the nth-level time-sharing control unit, the controller of the time-sharing start control device is connected to any switch of the time-domain differential module of any time-sharing start control device in the (n-1)th-level time-sharing control unit, where n>1; in the first-level time-sharing control unit, the controller of the time-sharing start control device is connected to the upper-level power grid;

[0044] In the m-th level time-sharing control unit, any switch of the time-domain differential module of the time-sharing start control device is connected to the controller of the time-sharing start control device of the (m+1)-th level time-sharing control unit; m≥1.

[0045] Preferably, in the m-th level time-sharing control unit, the other switches of the time-domain differential module of the time-sharing start control device are connected to at least one electrical device.

[0046] Specifically, such as Figure 3 As shown, taking a scenario with two levels and each level's time-sharing control unit including one time-sharing start control device as described in any of the above embodiments, the controller C1 of the time-sharing start control device (hereinafter referred to as time-sharing start control device K1) of the first-level time-sharing control unit is connected to the upper-level power grid, and the N switches A1, A2, ..., A of the time-domain differential module are... N Each of the N electrical devices B1, B2, ..., B is connected in a one-to-one correspondence. N Furthermore, switch A2 is simultaneously connected to the controller C2 of the time-sharing start control device (hereinafter referred to as time-sharing start control device K2) of the second-level time-sharing control unit, and the N switches A of the time-domain differential module of the time-sharing start control device are also connected. N+1 A N+2 A N+N Connect each of the N electrical devices B to its corresponding device. N+1 B N+2 B N+N .

[0047] The controller C1 of the time-sharing start control device K1 generates time-sharing control commands to control the switches A1, A2, ..., A3 of the time-domain differential module of the time-sharing start control device K1. N Time-sharing closure, thereby controlling electrical equipment B1, B2, ..., B N Time-sharing start: The time-sharing start control device K2, connected to switch A2, generates a time-sharing control command to control switch A2 of the time-domain differential module of the time-sharing start control device K2. N+1 A N+2 A N+N Time-sharing closure, thereby starting electrical equipment B in a time-sharing manner. N+1 B N+2 B N+N .

[0048] Preferably, the upstream power grid is connected to at least one electrical device.

[0049] Preferably, the electrical equipment is a digital monitoring instrument.

[0050] Specifically, taking the time-sharing start control system of 85 smart sensors for monitoring hazardous gases in public buildings as an example, the probes of the smart sensors for monitoring hazardous gases use semiconductor-type sensitive elements. When powered on simultaneously, each smart sensor transmits data to the backend after sensing the hazardous gas concentration and assigning an identification code, resulting in data loss due to transmission time conflicts. Therefore, the time-sharing start control system provided in this embodiment of the invention is adopted. The upper-level time-sharing start control device adopts millisecond-level time-sharing and has 15 switches. Ten switches are connected one-to-one with the 10 smart gas sensors, serving as time-sharing start switches for the 10 smart gas sensors. Five switches are used as time-sharing start switches for the input power of the secondary time-sharing power distribution network device, connecting to five millisecond-level time-sharing start control devices. Each of the five secondary time-sharing start control devices has 15 switches and is connected to a smart gas sensor, connecting a total of 75 smart gas sensors. The system uses a total of six time-sharing start control devices, connecting 85 smart gas sensor terminals. Each of the six time-sharing start control devices is connected one-to-one to six power grid status sensing modules, i.e., power status sensing sensors (such as ammeters).

[0051] like Figure 4 As shown, the system includes two levels of time-sharing control units. The first-level time-sharing control unit includes one time-sharing start control device as described in any of the above embodiments, and the second-level time-sharing control unit includes five time-sharing start control devices as described in any of the above embodiments. Taking the time-sharing start control device of the first-level time-sharing control unit (hereinafter referred to as time-sharing start control device K) as an example... 11 ) controller C 11 Connected to the upstream power grid (here, the upstream power source), the time-domain differential module includes 15 switches A. 11 A 12 A 115 Five of the switches A 11 A 12 A 15 Each of the five time-sharing start control devices K is connected to the second-level time-sharing control unit. 21 K 22 K 25 Controller C 21 C 22 ..., C 25 Another 10 switches A 110 A 111 A 115 Each of the 10 hazardous gas monitoring smart sensors S is connected to one of them. 11S 12 S 110 The second-level time-sharing control unit has five time-sharing start control devices K. 21 K 22 K 25 Each device has fifteen switches, and the fifteen switches of each time-sharing start control device are connected to fifteen intelligent sensors for monitoring harmful gases. There are five time-sharing start control devices K. 21 K 22 K 25 A total of 75 smart sensors for monitoring harmful gases were connected, for example, K 21 The fifteen switches are respectively connected to the harmful gas monitoring smart sensor S 2101 S 2102 S 2115 One-to-one correspondence connection, K 22 K 25 Similarly.

[0052] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A time-sharing start control system, characterized in that, include: Multi-level time-sharing control unit; Each level of time-sharing control unit includes at least one time-sharing start control device; In the nth-level time-sharing control unit, the controller of the time-sharing start control device is connected to any switch of the time-domain differential module of any time-sharing start control device in the (n-1)th-level time-sharing control unit, where n>1; in the first-level time-sharing control unit, the controller of the time-sharing start control device is connected to the upper-level power grid; In the m-th level time-sharing control unit, any switch of the time-domain differential module of the time-sharing start control device is connected to the controller of the time-sharing start control device of the (m+1)-th level time-sharing control unit; m≥1; In the m-th level time-sharing control unit, other switches of the time-domain differential module of the time-sharing start control device are connected to at least one electrical device; The time-sharing start control device includes: The time-domain differential module includes a time-domain differential converter and multiple switches; The controller is connected to the upstream power grid and is used to output time-sharing control commands to the time-domain differential module. The time-domain differential unit of the time-domain differential module controls the multiple switches to close in a time-sharing manner according to the time-sharing control commands. The power grid status sensing module is used to acquire the load of the upstream and downstream power grids and the on / off status of each switch; The digital information module is used to convert the upstream and downstream power grid loads and the on / off status of each switch into digital information and add data identifiers; wherein, the data identifiers are the device's identification codes; The wireless transmission module is used to send digital information with data identifiers to the backend.

2. The system as described in claim 1, characterized in that, The upstream power grid is connected to at least one electrical device.

3. The system as described in claim 1, characterized in that, The electrical equipment is a digital monitoring instrument.

4. The system as described in claim 1, characterized in that, The switch is a relay or a thyristor.

5. The system as described in claim 1, characterized in that, It also includes UPS power supplies.

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