IP Library › Granted Patent US 12681061
Granted Patent B2
US 12681061 · App. 18/566,320 · Granted Jul 14, 2026

Wireless electrical sensor and electrical parameter measurement and calculation apparatus, method and system

Inventors: Rui Cao (Taiyuan, CN); Jiang Chen (Taiyuan, CN); Yanjun Song (Taiyuan, CN)
Assignee: ACCUPOWER ELECTRONIC TECHNOLOGIES CO., LTD. OF TAIYUAN
G01R21/06G01R15/186G01R19/255G08C17/02G01R35/04
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Quick Facts
Patent No.
US 12681061
App. No.
18/566,320
Granted
Jul 14, 2026
Kind
B2
Abstract

An electrical parameter measurement and calculation apparatus, method, and system, and a wireless electrical sensor. The calculation apparatus includes a first electrical signal acquisition module, a first wireless module and an electrical parameter calculation module, where the first wireless module receives a first electrical signal in a wireless manner and transmits the first electrical signal to the electrical parameter calculation module; the first electrical signal acquisition module acquires and transmits a second electrical signal to the electrical parameter calculation module; and the electrical parameter calculation module calculates electrical parameter information according to the first electrical signal and the second electrical signal. According to the wireless electrical sensor and the electrical parameter measurement and calculation apparatus, method and system, first, the use of test wires is reduced; second, the number of wireless modules used is reduced; and time information of signal sampling is synchronized, thereby realizing high-precision electrical parameter measurement.

Claims (58)

1 . An electrical parameter measurement and calculation apparatus, comprising a voltage acquirer, a first wireless communication device, and an electrical parameter calculator integrated together, wherein

the first wireless communication device receives a current signal from a wireless current sensor in a wireless manner and transmits the current signal to the electrical parameter calculator, wherein the wireless current sensor transmits the current signal to the electrical parameter measurement and calculation apparatus in a wireless manner;

the voltage acquirer acquires a voltage signal and transmits the voltage signal to the electrical parameter calculator; and

the electrical parameter calculator calculates electrical parameter information according to the current signal and the voltage signal; and

the apparatus further comprises a first analog-to-digital converter configured to convert an analog voltage signal acquired by the voltage acquirer into a digital voltage signal;

wherein the first analog-to-digital converter receives a time signal of the first wireless communication device, and the first wireless communication device ensures signal sampling time synchronization of the current signal and the voltage signal by:

GNSS timing;

5G timing;

sending local clock information to an opposite second wireless communication device by the first wireless communication device; or

receiving local clock information from an opposite second wireless communication device by the first wireless communication device;

wherein the local clock information comprises a series of pulses and/or timestamps, the pulses are used for controlling sampling of the first analog-to-digital converter, and the timestamps are used for expressing information related to a local clock, so as to achieve correct clock synchronization with an opposite end.

2 . The apparatus according to claim 1 , wherein the first wireless communication device receives the current signal in a wireless manner through Bluetooth, 2G, 3G, 4G, 5G, WIFI, sub1G, ZigBee or a custom wireless transmission protocol.

3 . The apparatus according to claim 1 , wherein the first wireless communication device comprises a first wireless synchronization unit, the first analog-to-digital converter receives a time signal of the first wireless synchronization unit, and the first wireless synchronization unit ensures signal sampling time synchronization of the current signal and the voltage signal by:

GNSS timing;

5G timing;

sending local clock information to an opposite wireless synchronization unit by the first wireless synchronization unit; or

receiving local clock information from an opposite wireless synchronization unit by the first wireless synchronization unit; and

wherein the first wireless communication device comprises a first wireless transmission unit, and the first wireless transmission unit receives the current signal in a wireless manner through Bluetooth, 2G, 3G, 4G, 5G, WIFI, sub1G, ZigBee or a custom wireless transmission protocol.

4 . A wireless current sensor, comprising:

a current acquirer configured to acquire a current signal;

a second analog-to-digital converter configured to convert an analog current signal acquired by the current acquirer into a digital current signal; and

a second wireless communication device configured to receive the acquired current signal and transmit the acquired current signal to an electrical parameter measurement and calculation apparatus in a wireless manner, so that the electrical parameter measurement and calculation apparatus calculates electrical parameter information according to the current signal and a voltage signal acquired by itself;

wherein the second analog-to-digital converter receives a time signal of the second wireless communication device, and the second wireless communication device ensures signal sampling time synchronization of the current signal by:

GNSS timing;

5G timing;

sending local clock information to an opposite first wireless communication device by the second wireless communication device; or

receiving local clock information from an opposite first wireless communication device by the second wireless communication device;

wherein the local clock information comprises a series of pulses and/or timestamps, the pulses are used for controlling sampling of the second analog-to-digital converter, and the timestamps are used for expressing information related to a local clock, so as to achieve correct clock synchronization with an opposite end.

5 . The wireless current sensor according to claim 4 , wherein the second wireless communication device sends the acquired current signal in a wireless manner through Bluetooth, 2G, 3G, 4G, 5G, WIFI, sub1G, ZigBee or a custom wireless transmission protocol.

6 . The wireless current sensor according to claim 4 , wherein the second wireless communication device comprises a second wireless synchronization unit, the second analog-to-digital converter receives a time signal of the second wireless synchronization unit, and the second wireless synchronization unit ensures signal sampling time synchronization of the current signal by:

GNSS timing;

5G timing;

sending local clock information to an opposite wireless synchronization unit by the second wireless synchronization unit; or

receiving local clock information from an opposite wireless synchronization unit by the second wireless synchronization unit; and

wherein the second wireless communication device comprises a second wireless transmission unit, and the second wireless transmission unit sends the acquired current signal in a wireless manner through Bluetooth, 2G, 3G, 4G, 5G, WIFI, sub1G, ZigBee or a custom wireless transmission protocol.

7 . An electrical parameter measurement and calculation system, comprising an electrical parameter measurement and calculation apparatus comprising a voltage acquirer, a first wireless communication device, and an electrical parameter calculator integrated together, wherein the first wireless communication device receives a current signal from a wireless current sensor in a wireless manner and transmits the current signal to the electrical parameter calculator, wherein the wireless current sensor transmits the current signal to the electrical parameter measurement and calculation apparatus in a wireless manner;

the voltage acquirer acquires a voltage signal and transmits the voltage signal to the electrical parameter calculator; and

the electrical parameter calculator calculates electrical parameter information according to the current signal and the voltage signal; and

the apparatus further comprises a first analog-to-digital converter configured to convert an analog voltage signal acquired by the voltage acquirer into a digital voltage signal;

and a wireless current sensor comprising a current acquirer configured to acquire a current signal;

a second analog-to-digital converter configured to convert an analog current signal acquired by the current acquirer into a digital current signal; and

a second wireless communication device configured to receive the acquired current signal and transmit the acquired current signal to the electrical parameter measurement and calculation apparatus in a wireless manner, so that the electrical parameter measurement and calculation apparatus calculates electrical parameter information according to the current signal and a voltage signal acquired by itself;

wherein the first wireless communication device and the second wireless communication device ensure signal sampling time synchronization of the current signal and the voltage signal by:

GNSS timing;

5G timing;

sending local clock information to the second wireless communication device by the first wireless communication device; or

receiving local clock information from the second wireless communication device by the first wireless communication device;

wherein the local clock information comprises a series of pulses and/or timestamps, the pulses are used for controlling sampling of the first analog-to-digital converter and the second analog-to-digital converter, and the timestamps are used for expressing information related to a local clock, so as to achieve correct clock synchronization with an opposite end.

8 . The measurement and calculation system according to claim 7 ,

wherein the second wireless communication device receives the acquired current signal and transmits the acquired current signal to the first wireless communication device in a wireless manner through Bluetooth, 2G, 3G, 4G, 5G, WIFI, sub1G, ZigBee or a custom wireless transmission protocol.

9 . The measurement and calculation system according to claim 7 , wherein the first wireless communication device comprises a first wireless synchronization unit, the second wireless communication device comprises a second wireless synchronization unit, and the electrical parameter measurement and calculation apparatus and the wireless current sensor ensure signal sampling time synchronization of the current signal and the voltage signal through the first wireless synchronization unit and the second wireless synchronization unit; wherein

the first wireless synchronization unit and the second wireless synchronization unit ensure the signal sampling time synchronization of the current signal and the voltage signal by:

GNSS timing;

5G timing;

sending local clock information to the second wireless synchronization unit by the first wireless synchronization unit; or

receiving local clock information from the second wireless synchronization unit by the first wireless synchronization unit;

the first wireless communication device comprises a first wireless transmission unit, the second wireless communication device comprises a second wireless transmission unit, and the second wireless transmission unit receives the acquired current signal and transmits the acquired current signal to the first wireless transmission unit in a wireless manner; and

the wireless transmission is realized through Bluetooth, 2G, 3G, 4G, 5G, WIFI, sub1G, ZigBee or a custom wireless transmission protocol.