Electrical appliance registration method and electrical appliance monitoring device

Abstract

The present invention relates to the field of electrical cabinets, and more particularly to a method for registering and monitoring electrical appliances. The method comprises the following steps: obtaining first electrical parameters of each electrical appliance sequentially connected in parallel to a trunk cable in a first manner; obtaining second electrical parameters of each electrical appliance sequentially connected in parallel to the trunk cable in a second manner; transmitting the first electrical parameters of each electrical appliance sequentially in a first order based on the first and second electrical parameters; and determining electrical appliance status information based on the first electrical parameters.

Description

Technical Field

[0001] The present invention relates to the field of electric cabinets, and in particular to an electric appliance registration method and an electric appliance monitoring device. Background Art

[0002] When electrical appliances are in operation, faults may occur. In this case, it is necessary to detect the faults in time so that they can be corrected in time. When there are a large number of electrical appliances, such as a large number of lighting equipment in a factory, it is necessary to monitor the operation of the lighting at all times so that faulty equipment can be detected in time. Currently, electrical appliances are often networked and their operation is monitored by monitoring the power supply of the circuits where the electrical appliances are located. When electrical appliances are deployed on a large scale using a unified power supply method, in order to determine whether the electrical appliances are successfully networked, the monitoring module needs to send monitoring data after receiving instructions from the control module to realize the registration of the electrical appliances. Since the number of electrical appliances is large, the corresponding number of monitoring modules will also be large, which will cause data collisions when sending data. Summary of the Invention

[0003] On the one hand, the present invention provides a method for registering electrical appliances, which can avoid data collision when registering and transmitting data when there are a large number of electrical appliances.

[0004] In another aspect, the present invention provides an electrical appliance monitoring device.

[0005] The electrical appliance registration method provided by the present invention comprises the following steps:

[0006] Obtaining first electrical parameters of each electrical appliance sequentially connected in parallel to the trunk cable in a first manner; obtaining second electrical parameters of each electrical appliance sequentially connected in parallel to the trunk cable in a second manner;

[0007] According to the first electrical parameter and the second electrical parameter, the first electrical parameter of each electrical appliance is sent in sequence according to a first order;

[0008] State information of the electrical consumer is determined based on the first electrical parameter.

[0009] Furthermore, the first sequence refers to sending the first electrical parameter of the electrical appliance when the first electrical parameter of the electrical appliance is equal to the first threshold value; and when the first electrical parameter of the electrical appliance is greater than the first threshold value, comparing the first electrical parameter of the electrical appliance with the second electrical parameter obtained most recently, and sending the first electrical parameter of the electrical appliance if the difference between the second electrical parameter and the first electrical parameter is equal to the first threshold value.

[0010] Furthermore, the state information of the electrical appliances includes location information of each electrical appliance, and the location of the electrical appliance corresponding to each first electrical parameter is determined according to the sending order of the first electrical parameters of each electrical appliance.

[0011] Furthermore, the status information of the electrical appliances also includes the operating status of each electrical appliance.

[0012] Furthermore, if the difference between the first electrical parameters sent twice adjacently is equal to or less than the second threshold, the operating state of the corresponding electrical appliance is abnormal.

[0013] Furthermore, the first method refers to monitoring the transmission line to obtain the electrical parameters of the corresponding electrical appliances; the second method refers to obtaining the electrical parameters of other electrical appliances through monitoring.

[0014] Furthermore, the first electrical parameter and the second electrical parameter both refer to the power supply current of the trunk cable at the location where the electrical appliance is located.

[0015] The electrical appliance monitoring device provided by the present invention includes a main cable and several branch cables, the main cable having a first end connected to a control module and a second end away from the control module, the main cable having several connection positions between the first end and the second end, and several branch cables being respectively connected to the connection positions along the direction from the first end to the second end, each branch cable being provided with an electrical appliance, and a monitoring module being provided between two adjacent connection positions, the monitoring module being used to monitor the current size of the main cable and transmit the monitoring results to the control module.

[0016] Furthermore, the control module includes a processing module and a carrier communication unit, and signals are transmitted between the monitoring module and the carrier communication unit via the trunk cable.

[0017] Furthermore, the monitoring module includes a current transformer, a current sampling unit and a carrier communication module.

[0018] Beneficial effects

[0019] When entering the device profile information of an electrical appliance, this solution first measures the first electrical parameter of the corresponding electrical appliance in a first manner, and obtains the second electrical parameter of other electrical appliances in a second manner; each monitoring module compares the first electrical parameter measured by each monitoring module with a preset first threshold value; if the first electrical parameter measured by the monitoring module is less than the preset first threshold value, the first electrical parameter measured by the transmitter is received in a second manner; if the first electrical parameter measured by the monitoring module is greater than the preset first threshold value, the first electrical parameter sent by the other monitoring modules, i.e., the second electrical parameter, is compared with the first electrical parameter measured by the monitoring module; if the difference between the first electrical parameter measured by the monitoring module and the second electrical parameter is equal to the first threshold value, the first electrical parameter of the electrical appliance is sent; if the difference between the first electrical parameter measured by the monitoring module and the second electrical parameter is greater than the first threshold value, the first electrical parameter sent by the other monitoring modules, i.e., the second electrical parameter, is received in a second manner and compared with the first electrical parameter measured by the monitoring module. In the above manner, this solution can send data time in sequence according to the first electrical parameter obtained by monitoring, thereby avoiding data collision when the electrical appliance performs automatic registration of the device profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0021] Figure 1 This is an overall schematic diagram provided by Embodiment 1 and Embodiment 2 of the present invention;

[0022] Figure 2 It is a flowchart of embodiment 1 of the present invention.

[0023] Figure numbers: 1-control module; 2-carrier communication unit; 3-monitoring module; 4-trunk cable; 5-branch cable; 6-electrical appliance; 7-circuit module; 8-connection position. DETAILED DESCRIPTION

[0024] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0025] Example 1

[0026] like Figure 1-Figure 2 As shown, a method for registering an electrical appliance includes the following steps:

[0027] Obtaining first electrical parameters of each electrical appliance 6 sequentially connected in parallel to the trunk cable 4 in a first manner; obtaining second electrical parameters of each electrical appliance 6 sequentially connected in parallel to the trunk cable 4 in a second manner;

[0028] According to the first electrical parameter and the second electrical parameter, the first electrical parameter of each electrical appliance 6 is sent in sequence according to the first order;

[0029] The state information of the electrical load 6 is determined based on the first electrical parameter.

[0030] The electrical appliance registration method in this scheme is specifically implemented through the following device, including a main cable 4 and several branch cables 5. The first end 7 of the main cable 4 is connected to the control module 1, and the second end 9 is the remote end. The main cable 4 is provided with several connection positions 8. The connection positions 8 are connected in parallel on the main cable 4 from the first end 7 to the second end 9 in sequence. Each connection position 8 is provided with a branch cable 5, and each branch cable 5 is provided with an electrical appliance 6. A monitoring module 3 is provided between two adjacent connection positions 8. The monitoring module 3 is used to monitor the current value of the main cable 4 at its location, that is, the first electrical parameter, and is also used to receive the current value of the main cable 4 at other locations sent by other monitoring modules 3, that is, the second electrical parameter, and transmit the monitoring results to the control module 1.

[0031] Along the direction from the first end 7 to the second end 9, the electrical appliances 6 are sequentially the first electrical appliance, the second electrical appliance, ... the nth electrical appliance, and the connection positions 8 on the trunk cable 4 are sequentially the first connection position, the second connection position, ... the nth connection position.

[0032] This solution can realize the registration of electrical appliance 6, specifically through the following steps:

[0033] S1: Each monitoring module 3 measures a first electrical parameter of its corresponding electrical appliance 6 in a first manner;

[0034] S2: Each monitoring module 3 compares the first electrical parameter measured by itself with a preset first threshold;

[0035] S3: If the first electrical parameter measured by the monitoring module 3 is equal to the preset first threshold, the first electrical parameter measured by the transmitter is received; if the first electrical parameter measured by the monitoring module 3 is greater than the preset first threshold, the first electrical parameter sent by the other monitoring module 3 is received in a second manner, that is, the second electrical parameter, and compared with the first electrical parameter measured by the monitoring module 3;

[0036] S4: If the difference between the first electrical parameter and the second electrical parameter measured by the monitoring module 3 is equal to the first threshold value, the first electrical parameter of the electrical appliance 6 is sent; if the difference between the first electrical parameter and the second electrical parameter measured by the monitoring module 3 is greater than the first threshold value, the first electrical parameter sent by other monitoring modules 3 is received in a second manner, that is, the second electrical parameter, and compared with the first electrical parameter measured by this monitoring module 3.

[0037] In this solution, when entering the device file information of the electrical appliance 6, the control module 1 first sends a broadcast automatic registration command. After receiving the command, the monitoring module 3 actively reports the device registration information. Since data cannot be sent simultaneously on the same carrier line, otherwise a data collision will occur, the monitoring module 3 can send data time in sequence according to the first electrical parameter obtained by monitoring, thereby avoiding data collision when the electrical appliance 6 performs automatic registration of the device file.

[0038] In an optional embodiment, the first sequence refers to sending the first electrical parameter of the electrical appliance 6 when the first electrical parameter of the electrical appliance 6 is equal to the first threshold value; when the first electrical parameter of the electrical appliance 6 is greater than the first threshold value, comparing the first electrical parameter of the electrical appliance 6 with the second electrical parameter obtained most recently, and if the difference between the second electrical parameter and the first electrical parameter is equal to the first threshold value, sending the first electrical parameter of the electrical appliance 6.

[0039] The electrical appliances 6 on the branch cable 5 divert the current on the main cable 4. The monitoring modules 3 along the direction from the first end 7 to the second end 9 are the first monitoring module, the second monitoring module...the nth monitoring module in sequence. The control module 1 supplies power to the main cable 4. When the current on the main cable 4 flows from the first end 7 through each connection position 8 in sequence, a part of it is diverted through the connection position 8 at that location into the branch cable 5 connected to the connection position 8 to supply power to the electrical appliances 6 on the branch cable 5. Therefore, the current flowing through the first monitoring module to the nth monitoring module decreases successively.

[0040] In an optional embodiment, the status information of the electrical appliances 6 includes location information of each electrical appliance 6 , and the location of the electrical appliance 6 corresponding to each first electrical parameter is determined according to the order in which the first electrical parameters of each electrical appliance 6 are sent.

[0041] At the same time, the position of the monitoring module 3 can be determined based on this feature, that is, the greater the current passing through the monitoring module 3, the closer the monitoring module 3 is to the control module 1. If the current detected by the first monitoring module 3 is greater than the current detected by the second monitoring module 3, it proves that the first monitoring module 3 is closer to the first end 7.

[0042] In an optional embodiment, the status information of the electrical appliances 6 further includes the operating status of each electrical appliance 6 .

[0043] In an optional implementation, if the difference between two adjacent transmissions of the first electrical parameter is equal to or less than the second threshold, the operating state of the corresponding electrical appliance 6 is abnormal.

[0044] This solution has a structure in which the first end 7 of the trunk cable 4 is connected to the control module 1. On the trunk cable 4, along the direction from the first end 7 to the second end 9, there are, in sequence, a first monitoring module, a first connection position, a second monitoring module and a second connection position...the nth monitoring module and the nth connection position. Under normal circumstances, the current passing through the first monitoring module, the first connection position, the second monitoring module and the second connection position decreases in sequence. If the currents detected by two consecutively numbered monitoring modules 3 are equal, it means that the electrical appliance between the two monitoring modules 3 is damaged. If the currents detected by the first monitoring module and the second monitoring module are the same, or are only within the range of the second threshold, i.e., the loss value, it proves that the first electrical appliance is damaged and the current does not shunt at the first connection position.

[0045] In an optional embodiment, the first method refers to monitoring the transmission line to obtain the electrical parameters of the corresponding electrical appliance 6; the second method refers to obtaining the electrical parameters of other electrical appliances 6 by monitoring.

[0046] The first method refers to measuring the current value of the corresponding electrical appliance 6 through a current transformer; the second method refers to obtaining the current values ​​of other electrical appliances 6 by receiving broadcast signals of other current transformers.

[0047] In an optional embodiment, the first electrical parameter and the second electrical parameter both refer to the power supply current of the trunk cable 4 at the location where the electrical appliance 6 is located.

[0048] Example 2

[0049] like Figure 1-Figure 2 As shown, the electrical appliance monitoring device provided by the embodiment of the present invention includes a main cable 4 and several branch cables 5. The main cable 4 has a first end 7 connected to the control module 1 and a second end 9 away from the control module 1. Several connection positions 8 are provided on the main cable 4 between the first end 7 and the second end 9. Several branch cables 5 are respectively connected to the connection positions 8 along the direction from the first end 7 to the second end 9. Each branch cable 5 is provided with an electrical appliance 6. A monitoring module 3 is provided between two adjacent connection positions 8. The monitoring module 3 is used to monitor the current of the main cable 4 and transmit the monitoring result to the control module 1.

[0050] In an optional embodiment, the control module 1 includes a processing module and a carrier communication unit 2 , and signals are transmitted between the monitoring module 3 and the carrier communication unit 2 via a trunk cable 4 .

[0051] To reduce on-site wiring costs, the monitoring module 3 and the control module 1 communicate using a power line carrier. Specifically, the control module 1 is equipped with a carrier communication unit, which has a relay communication function. Several carrier communication units are installed on the trunk cable 4. When the monitoring module 3 is far away from the control module 1, the intermediate unit can relay the signal, improving the communication distance and reliability.

[0052] In an optional implementation, the monitoring module 3 includes a current transformer, a current sampling unit, and a carrier communication module.

[0053] Monitoring module 3 is a snap-on current transformer, facilitating on-site assembly and use. Power is supplied by either the main cable 4 or the branch cable 5. The power consumption of monitoring module 3 is less than that of electrical appliances, and can be accounted for as a power loss. The current sampling unit collects the electrical parameters measured by the current transformer and transmits them to carrier communication unit 2 via the carrier communication module.

[0054] It should be noted that any of the above embodiments are illustrative of the invention and not limiting thereof, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbols placed between brackets should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising several different elements and by means of appropriately programmed computers. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words primary, secondary, previous, and next etc. does not indicate any order. These words may be interpreted as names.

[0055] The above embodiments are only suitable for illustrating the present invention, and are not intended to limit the present invention. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the present invention. The scope of patent protection of the present invention should be defined by the claims.

Claims

1. A method for registering an electrical appliance, characterized in that: The following steps are involved: Obtaining first electrical parameters corresponding to the respective electrical appliances (6) sequentially connected in parallel to the trunk cable (4) in a first manner; Obtaining, in a second manner, first electrical parameters of the electrical appliances (6) sequentially connected in parallel to the trunk cable (4) as second electrical parameters; According to the first electrical parameters and the second electrical parameters at each electrical appliance (6), the first electrical parameters of each electrical appliance (6) are sequentially sent in a first order; Determining state information of the electrical appliances (6) based on first electrical parameters at each electrical appliance (6); The first sequence means that when the first electrical parameter at each electrical appliance (6) is equal to the first threshold value, the first electrical parameter at the electrical appliance (6) is sent normally; When the first electrical parameter at the electrical appliance (6) is greater than a first threshold, the first electrical parameter at the electrical appliance (6) is compared with the second electrical parameter obtained most recently, and if the difference between the second electrical parameter and the first electrical parameter is equal to the first threshold, the first electrical parameter at the electrical appliance (6) is sent normally; The first method is to monitor the transmission line to obtain the first electrical parameter at the corresponding electrical appliance (6); the second method is to obtain the first electrical parameter at each of the other electrical appliances (6) by monitoring; The first electrical parameter and the second electrical parameter both refer to the power supply current of the trunk cable (4) at the location where the application electrical appliance (6) is located.

2. The electrical appliance registration method according to claim 1, characterized in that: The state information of the electrical appliances (6) includes the location information of each electrical appliance (6). According to the sending order of the first electrical parameters at each electrical appliance (6), the location of the electrical appliance (6) corresponding to each first electrical parameter is determined.

3. The electrical appliance registration method according to claim 2, characterized in that: The status information of the electrical appliances (6) also includes the operating status of each electrical appliance (6).

4. The electrical appliance registration method according to claim 3, characterized in that: If the difference between the first electrical parameters sent twice adjacently is equal to or less than the second threshold, the corresponding electrical appliance (6) is in an abnormal operating state.

5. An electrical appliance monitoring device, executing the electrical appliance registration method according to claim 1, characterized in that: The invention comprises a trunk cable (4) and a plurality of branch cables (5), wherein the trunk cable (4) has a first end (7) connected to a control module (1) and a second end (9) away from the control module (1), a plurality of connection positions (8) are provided on the trunk cable (4) between the first end (7) and the second end (9), and a plurality of branch cables (5) are respectively connected to the connection positions (8) along the direction from the first end (7) to the second end (9), each branch cable (5) is provided with an electrical appliance (6), and a monitoring module (3) is provided between two adjacent connection positions (8), and the monitoring module (3) is used to monitor the current of the trunk cable (4) and transmit the monitoring result to the control module (1).

6. The electrical appliance monitoring device according to claim 5, characterized in that: The control module (1) comprises a processing module and a carrier communication unit (2), and signals are transmitted between the monitoring module (3) and the carrier communication unit (2) via the trunk cable (4).

7. The electrical appliance monitoring device according to claim 6, characterized in that: The monitoring module (3) comprises a current transformer, a current sampling unit and a carrier communication module.

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