BIDIRECTIONAL WIRELESS ELECTRICAL ENERGY MONITORING SYSTEM

• US 20110291671A1
• Filed: 03/20/2009
• Published: 12/01/2011
• Est. Priority Date: 02/10/2009
• Status: Abandoned Application

• Current Assignee: Dong Guan Ricktek Electric-Mechanical Co., Ltd.
• Original Assignee: Dong Guan Ricktek Electric-Mechanical Co., Ltd.
• Inventors: Yang, Qi
• Application Number:
  US13/147,538
• Publication Number:
  US 20110291671A1
• Time in Patent Office: Days
• US Class Current: 324/629
• CPC Class Codes: H04Q 2209/40 using a wireless architecture
• CPC Class Codes: H04Q 2209/60 for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

The present invention relates to the technical field of energy monitoring system, and particularly to a bidirectional wireless electrical energy monitoring system which comprises a bidirectional wireless electrical energy monitoring apparatus and a bidirectional wireless electrical energy monitoring switchgear; the bidirectional wireless electrical energy monitoring apparatus comprises a first wireless bidirectional module for receiving a current signal from the bidirectional wireless electrical energy monitoring switchgear and transmitting a control signal to the bidirectional wireless electrical energy monitoring switchgear; the bidirectional wireless electrical energy monitoring switchgear comprises a second wireless bidirectional module for receiving the control signal from the bidirectional wireless electrical energy monitoring apparatus and transmitting the current signal of electrical equipment to the second wireless bidirectional module of the bidirectional wireless electrical energy monitoring apparatus; bidirectional wireless connection is realized between the bidirectional wireless electrical energy monitoring apparatus and the bidirectional wireless electrical energy monitoring switchgear through the first wireless bidirectional module and the second wireless bidirectional module. The present invention may realize the bidirectional signal transmission, bidirectional control and remote control between the bidirectional wireless electrical energy monitoring apparatus and the bidirectional wireless electrical energy monitoring switchgear.

Claims

1. A bidirectional wireless electrical energy monitoring system, comprising a bidirectional wireless electrical energy monitoring apparatus and a bidirectional wireless electrical energy monitoring switchgear;

the bidirectional wireless electrical energy monitoring apparatus comprising a first microprocessor, a display module and a first key module, an input of the display module being connected to a display driving output of the first microprocessor, and an output of the first key module being connected to a key detection input of the first microprocessor;

the bidirectional wireless electrical energy monitoring switchgear comprising a second microprocessor, a current induction module and a switch control circuit, an output of the current induction module being connected to a current detection input of the second microprocessor, and an input of the switch control circuit being connected to a control output of the second microprocessor, wherein the bidirectional wireless electrical energy monitoring apparatus also comprises a first wireless bidirectional module for receiving a current signal from the bidirectional wireless electrical energy monitoring switchgear and transmitting a control signal to the bidirectional wireless electrical energy monitoring switchgear, the first wireless bidirectional module being connected to the first microprocessor;

the bidirectional wireless electrical energy monitoring switchgear also comprises a second wireless bidirectional module for receiving the control signal from the bidirectional wireless electrical energy monitoring apparatus and transmitting the current signal of electrical equipment to the second wireless bidirectional module of the bidirectional wireless electrical energy monitoring apparatus, the second wireless bidirectional module being connected to the second microprocessor;

bidirectional wireless connection is realized between the bidirectional wireless electrical energy monitoring apparatus and the bidirectional wireless electrical energy monitoring switchgear through the first wireless bidirectional module and the second wireless bidirectional module.

2. The bidirectional wireless electrical energy monitoring system according to claim 1, wherein the first wireless bidirectional module is composed of a radio frequency transceiver chip U1_1, a crystal oscillator Y1_1, an antenna J1_1, capacitors C1_1, C1_2, C1_4, C1_5 and inductances L1_1, L1_2, L1_3, one end of the crystal oscillator Y1_1 is connected to the 9 pin of the radio frequency transceiver chip U1_1, and the other end is grounded;

one end of the capacitor C1_5 is connected to the 15 pin of the radio frequency transceiver chip U1_1, and the other end is grounded;

the inductance L1_1 is connected between the 12 pin and 13 pin of the radio frequency transceiver chip U1_1, and the inductance L1_2 is connected between the 12 pin and 14 pin of the radio frequency transceiver chip U1_1;

one end of the capacitor C1_1 is connected to the 13 pin of the radio frequency transceiver chip U1_1, and the other end is grounded;

one end of the capacitor C1_4 is connected to the 12 pin of the radio frequency transceiver chip U1_1, the other end is connected to one end of the inductance L1_3, and the other end of the inductance L1_3 is connected to the 13 pin of the radio frequency transceiver chip U1_1;

one end of the capacitor C1_2 is connected to the intersection of the inductances L1_3 and C1_4, and the other end is connected to the antenna J1_1;

the 11 pin of the radio frequency transceiver chip U1_1 is a grounding pin which is grounded, the 14 pin of the radio frequency transceiver chip U1_1 is a power pin for providing power, and the 1-8 pins, 10 pin and 16 pin of the radio frequency transceiver chip U1_1 are connected to the first microprocessor.

3. The bidirectional wireless electrical energy monitoring system according to claim 1, wherein the first wireless bidirectional module uses IA4421 as the radio frequency transceiver chip U1_1.

4. The bidirectional wireless electrical energy monitoring system according to claim 1, wherein the bidirectional wireless electrical energy monitoring apparatus further comprises a clock and calendar module that is connected to the first microprocessor for configuration of the clock and calendar.

5. The bidirectional wireless electrical energy monitoring system according to claim 4, wherein the bidirectional wireless electrical energy monitoring apparatus further comprises a first power source module which is composed of a first power input circuit and a first voltage regulator circuit, the input of the first power input circuit is connected to an external power source, the output of the first power input circuit is connected to the input of the first voltage regulator circuit, and the output of the first voltage regulator circuit is connected to the power inputs of the first microprocessor, the display module, the first key module, the first wireless bidirectional module and the clock and calendar module, respectively.

6. The bidirectional wireless electrical energy monitoring system according to claim 1, wherein the second wireless bidirectional module is composed of a radio frequency transceiver chip U2_1, a crystal oscillator Y2_1, an antenna J2_1, capacitors C2_1, C2_2, C2_4, C2_5 and inductances L2_1, L2_2, L2_3, one end of the crystal oscillator Y2_1 is connected to the 9 pin of the radio frequency transceiver chip U2_1, and the other end is grounded;

one end of the capacitor C2_5 is connected to the 15 pin of the radio frequency transceiver chip U2_1, and the other end is grounded;

the inductance L2_1 is connected between the 12 pin and 13 pin of the radio frequency transceiver chip U2_1, and the inductance L2_2 is connected between the 12 pin and 14 pin of the radio frequency transceiver chip U2_1;

one end of the capacitor C2_1 is connected to the 13 pin of the radio frequency transceiver chip U2_1, and the other end is grounded;

one end of the capacitor C2_4 is connected to the 12 pin of the radio frequency transceiver chip U2_1, the other end is connected to one end of the inductance L2_3, and the other end of the inductance L2_3 is connected to the 13 pin of the radio frequency transceiver chip U2_1;

one end of the capacitor C2_2 is connected to the intersection of the inductances L2_3 and C2_4, and the other end is connected to the antenna J2_1;

the 11 pin of the radio frequency transceiver chip U2_1 is a grounding pin which is grounded, the 14 pin of the radio frequency transceiver chip U2_1 is a power pin for providing power, and the 1-8 pins, 10 pin and 16 pin of the radio frequency transceiver chip U2_1 are connected to the second microprocessor.

7. The bidirectional wireless electrical energy monitoring system according to claim 6, wherein the second wireless bidirectional module uses IA4421 as the radio frequency transceiver chip U2_1.

8. The bidirectional wireless electrical energy monitoring system according to claim 1, wherein the bidirectional wireless electrical energy monitoring switchgear further comprises a second key module, an indicator circuit, the output of the second key module is connected to the key detection input of the second microprocessor, and the input of the indicator circuit is connected to the status output of the second microprocessor.

9. The bidirectional wireless electrical energy monitoring system according to claim 8, wherein the bidirectional wireless electrical energy monitoring switchgear further comprises a second power source module which includes a second power input circuit, a rectifying circuit and a second voltage regulator circuit, the input of the second power input circuit is connected to an external power source, the output of the second power input circuit is connected to the AC input of the switch control circuit and the input of the rectifying circuit, respectively, the output of the rectifying circuit is connected to the AC input of the switch control circuit and the input of the second voltage regulator circuit, respectively, the output of the second voltage regulator circuit is connected to the DC inputs of the second microprocessor, the current induction module, the second wireless bidirectional module, the second key module and the indicator circuit, respectively.

10. The bidirectional wireless electrical energy monitoring system according to claim 9, wherein the second power source module further comprises a voltage detection circuit, the input of the voltage detection circuit is connected to the output of the second power input circuit, and the output of the voltage detection circuit is connected to the voltage detection input of the second microprocessor for detecting the input voltage of the power source.