Multifunctional socket

Abstract

The utility model discloses a multifunctional socket which comprises an Soc main control unit, a communication / positioning unit and a metering sampling circuit. The metering sampling circuit is used for providing voltage and current sampling signals for the metering module; the Soc main control unit is used for converting voltage and current sampling signals provided by the metering sampling circuit into digital signals and obtaining power so as to monitor voltage, current and use duration data; and the communication / positioning unit is used for reporting the starting time, the stopping time, the electric parameters and the electric energy metering data of the user to the cloud platform, and reporting the position information of the longitude, the dimension and the height of the user to the cloud platform at the same time. According to the utility model, voltage, current and power, electric energy metering data and user and position information of the electric equipment can be automatically acquired and transmitted to the cloud platform for storage, so that management personnel can conveniently master time period analysis and time length analysis of the electric equipment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to power supply device field, especially a multifunctional socket. BACKGROUND

[0002] Among numerous sockets and socket strips, it is applied to the fields of socket technology, household and electrical appliance technology, etc. Its functions are various, including sockets mainly for measuring power, sockets mainly for measuring electric energy, sockets for controlling on-off, and remote on-off management of mobile phone APP or cloud platform by using existing wireless communication technology. The use scenarios of the multifunctional socket are all personal or fixed places, and the user's identity is not identified and managed, and there is no mobile positioning function, so that the user cannot provide accurate location information. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a multifunctional socket, which automatically collects voltage, current, power, electric energy measurement data and user and location information of electrical equipment and transmits them to a cloud platform for storage, so that management personnel can master time period analysis, time length analysis and economic benefit analysis of the electrical equipment, thereby assisting scientific decision-making and reasonably planning the use of various instrument resources.

[0004] The technical solution for achieving the utility model is as follows:

[0005] A multifunctional socket comprises a Soc master control unit, a communication / positioning unit and a measurement sampling circuit.

[0006] The measurement sampling circuit is used for providing voltage and current sampling signals for a measurement module.

[0007] The Soc master control unit converts the voltage and current sampling signals provided by the measurement sampling circuit into digital signals and obtains power to monitor voltage, current and use time length data.

[0008] The communication / positioning unit is used for reporting the start time, stop time, electric parameter and electric energy measurement data of the user to a cloud platform and simultaneously reporting the location information of the user, including longitude, latitude and height, to the cloud platform.

[0009] Compared with the prior art, the utility model has the following obvious advantages:

[0010] The utility model discloses a socket panel is provided with two eyes and three eyes jack, with the electrical equipment such as large -scale scientific instrument connected with it, this multifunctional socket deployment is flexible, through the automation collection of voltage current power, electric energy measurement data and user and position information of electrical equipment to main control unit block, and transmission gives cloud platform storage, thereby the time period analysis and length analysis of electrical equipment of convenient management personnel grasps, economic benefit analysis, to assist scientific decision, the use of reasonable planning various instrument resources. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the front structure block diagram of multifunctional socket.

[0012] Figure 2 It is the structure block diagram of Soc main control unit.

[0013] Figure 3 It is the kernel principle block diagram of Soc main control unit 100.

[0014] Figure 4 It is the measurement module circuit diagram.

[0015] Figure 5 It is the measurement sampling circuit diagram.

[0016] Figure 6 It is 4G communication (including positioning unit circuit diagram.

[0017] Figure 7 It is the structure block diagram and interface circuit diagram of NFC identification unit

[0018] Figure 8 It is the structure diagram of NFC on -board antenna. DETAILED DESCRIPTION

[0019] The utility model will be further introduced below in combination with the drawings and specific embodiment.

[0020] In combination Figure 1 , a multifunctional socket of the embodiment is provided with two-hole and three-hole socket interfaces, which facilitates users to insert and install different plugs, can realize scientific instrument equipment statistics of maximum 16A current, and can monitor voltage, current and use time length data.

[0021] In combination Figure 2 , a multifunctional socket 10 of the embodiment includes a Soc main control unit 100, an NFC identification unit 110, a communication / positioning unit 120, a measurement sampling circuit and an on-off unit 130, the on-off unit is an expandable unit for controlling load on-off.

[0022] The multifunctional socket identifies the identity information of the user through the card swiping by the NFC identification unit 110 and reports the cloud platform through the wireless communication mode by the communication / positioning unit 120, realizes the normal identification and abnormal alarm of the user identity. The user holds the Mifare card with the input identity information when using, and holds the Mifare card close to the NFC identification unit 110 to identify the identity.

[0023] The communication / positioning unit 120 reports the starting time, stopping time, electric parameter (voltage, current, active power, power factor, frequency) and electric energy measurement data of the user to the cloud platform through the 4G network, wherein the voltage, current and active power are obtained as the basic functions; at the same time, the longitude, latitude and height position information of the user are reported to the cloud platform, so that the cloud platform realizes the GIS trajectory diagram.

[0024] In combination with Figure 3 , the Soc master control unit 100 is built-in with a measurement module 201, an RTC module 202 (existing module) and a Uart communication module 203. The measurement module 201 realizes the current 1000:1 dynamic range, the voltage / current effective value measurement error is less than 0.5%, and can provide the active power, voltage and current effective value; the RTC module 202 supports temperature compensation, real-time second pulse correction, and the timing error is less than 5ppm in the full temperature range; the Uart communication module is used for communication with the NFC identification unit and the communication / positioning unit 120, and supports high-speed communication up to 115200bps.

[0025] The Figure 4 is the circuit diagram of the measurement module 201, including a clock crystal oscillator, an integrated circuit U1, a third resistor R9, a third capacitor C18, a sixth capacitor C14, a fifth capacitor C12, a third capacitor C18, a second capacitor C17, a fourth capacitor C9, a first capacitor C13, a first resistor R40, a second resistor R41, a memory U2;

[0026] V3.3 is an external power input, one end of the first capacitor C13 is connected to V3.3 and connected to pin 5 of the integrated circuit U1 (V9821S), which provides working power supply for the integrated circuit U1, and the other end of the first capacitor C33 is connected to ground; G1 clock crystal oscillator 32.768 kHz is directly connected to pin 1 and pin 48 of the integrated circuit U1 (V9821S), which provides clock signal for the integrated circuit U1, and provides working clock source for the integrated circuit U1 through the built-in PLL circuit; also provides clock signal for the RTC module 202 to realize real-time clock and calendar. The pin 40 and pin 41 of the integrated circuit U1 are connected to the pin 5 and pin 6 of the memory U2 (24LC04), SCL and SDA constitute IIC bus circuit, IIC bus is connected to V3.3V power supply through the first resistor R40 and the second resistor R41, the other end is connected to SDA and SCL respectively to communicate with U1, the pin 8 of the memory U2 is connected to one end of the second capacitor C17 and connected to V3.3 power supply, the other end of the second capacitor C17 is connected to ground and connected to pin 7, the pin 1, 2, 3, 4 of the memory U2 are connected to ground; one end of the third resistor R9 and one end of the third capacitor C18 are connected to form a delay reset circuit and connected to pin 47 of the integrated circuit U1, which provides RST reset signal when the integrated circuit U1 is powered on, the other end of the third resistor R9 is connected to V3.3 power supply, and the other end of the third capacitor C18 is connected to ground; one end of the fourth capacitor C9 is connected to pin 7 of the integrated circuit U1, which provides power supply for the ADC-REF reference source of the integrated circuit U1, and the other end is connected to ground GND; one end of the fifth capacitor C12 is connected to pin 3 of the integrated circuit U1, which is the digital DVCC power output of the integrated circuit U1, and the other end of the fifth capacitor C12 is connected to ground; one end of the sixth capacitor C14 is connected to pin 4 of the integrated circuit U1, which is the analog LDO3.3 power output of the integrated circuit U1, and the other end of the sixth capacitor C14 is connected to ground. The on-board 3-core interface P1 is a TTL signal, its pin 1, 2 are connected to pin 19 and 18 of the integrated circuit U1, pin 3 is connected to ground, which is used for external TTL communication with U1.

[0027] In combination Figure 5The metering sampling circuit provides voltage and current sampling signals for the metering module 201, including a voltage dividing sampling circuit and a current sampling circuit including a precision manganese-copper resistor. The voltage dividing sampling circuit includes a fifth resistor RA1, a sixth resistor RA2, a seventh resistor RA3, an eighth resistor RA4, a ninth resistor RA5, a tenth resistor R6 and a seventh capacitor C1; the fifth resistor RA1, the sixth resistor RA2, the seventh resistor RA3, the eighth resistor RA4, the ninth resistor RA5 and the tenth resistor R6 are connected in series, one end of the fifth resistor RA1 is connected to the AC power input N, one end of the tenth resistor R6 is connected to the AC power input L and grounded, the seventh capacitor C1 is connected in parallel across the tenth resistor R6, and the voltage signal Up output between the ninth resistor RA5 and the tenth resistor R6 is connected to the eighth pin of the integrated circuit U1. The current sampling circuit includes a precision manganese-copper resistor Rm1, a twelfth resistor R21, an eighth capacitor C2, a thirteenth resistor R22, a ninth capacitor C3, a fourteenth resistor R4, a fifteenth resistor R29 and a sixteenth resistor R2; pin 3 of the precision manganese-copper resistor Rm1 is connected to the AC power input L, pin 4 is the output Lout, pin 1 outputs the I- current which is connected to the ninth pin of the integrated circuit U1 through the twelfth resistor R21; pin 2 outputs the I+ current which is connected to the tenth pin of the integrated circuit U1 through the thirteenth resistor R22; the fourteenth resistor R4 is connected in parallel between the I+ current and the I- current circuit, the fifteenth resistor R29 and the sixteenth resistor R2 are connected in series and then connected in parallel between the I+ current and the I- current circuit and located in front of the twelfth resistor R21 and the thirteenth resistor R22, the eighth capacitor C2 and the ninth capacitor C3 are connected in series and then connected in parallel between the I+ current and the I- current circuit and located behind the twelfth resistor R21 and the thirteenth resistor R22, and the connection between the fifteenth resistor R29 and the sixteenth resistor R2 and the connection between the eighth capacitor C2 and the ninth capacitor C3 are connected to ground.

[0028] The AC power supply voltage input L and N, the voltage sampling circuit divides the 220V voltage signal of the power supply L through the fifth resistor RA1, the sixth resistor RA2, the seventh resistor RA3, the eighth resistor RA4 and the ninth resistor RA5 in series with the tenth resistor R6, divides the 220V strong current signal into a voltage signal of the millivolt level, and connects the voltage signal Up to the ADC channel of the eighth pin of the integrated circuit U1 through the integral circuit composed of the eleventh resistor R6 and the fifth capacitor C1; the current flows from L and flows out from Lout, and provides the voltage and the current for the electric equipment, and then the current flows through the patch precision manganese copper resistor Rm1, the precision manganese copper resistor Rm1 converts the differential voltage signal of the current signal I+ and I-, and connects the IAP and IAN current signals to the ADC channels of the ninth and tenth pins of the integrated circuit U1 through the integral circuit composed of the twelfth resistor R21, the sixth capacitor C2 and the thirteenth resistor R22 and the seventh capacitor C3. Therefore, the converted current signal is of the mV level, and even of the uV level when the load is a small current, and is extremely easy to be disturbed by the outside, and the utility model discloses a signal compensation circuit, one end of the fourteenth resistor R4 is connected with the current sampling circuit I+, one end of the fourteenth resistor R4 is connected with the current sampling circuit I-, realizes the common mode interference compensation, one end of the fifteenth resistor R29 is connected with the current sampling circuit I+, one end of the fifteenth resistor R29 is connected with the ground, one end of the sixteenth resistor R2 is connected with the current sampling circuit I-, and the other end of the sixteenth resistor R2 is connected with the ground, and the differential mode interference compensation is realized.

[0029] In combination Figure 6 The communication / positioning unit 120 comprises an EC800MCNGA communication module M1, a seventeenth resistor R26, an eighteenth resistor R27, an eighth capacitor C5 and a ninth capacitor C8.

[0030] The fifth pin and the sixth pin of the communication module M1 are connected to the pin 45 and the pin 46 of the integrated circuit U1 through the seventeenth resistor R26 and the eighteenth resistor R27, and the communication link is marked as TXD_RF and RXD_RF. The first pin of the communication module M1 is connected with the 5V power supply provided externally and one end of the eighth capacitor C5 and the ninth capacitor C8, so as to provide a stable power supply for the communication module M1, the second pin and the seventh pin are grounded, and the other end of the eighth capacitor C5 and the ninth capacitor C8 is grounded. The GPS positioning chip is externally connected with an external antenna, and provides the multi-functional socket with position information including longitude, latitude and height. The communication module M1 is remotely connected with the background master station system through the 4G signal, so as to realize data remote transmission and equipment position.

[0031] In combination Figure 7The NFC identification unit 110 is connected to the SoC master control unit 100, which further comprises a MU100 module 301, a built-in antenna 302 and a Mifare card 303.

[0032] The third pin and the fourth pin of the MU100 module 301 are connected to the pin 43 and the pin 44 of the integrated circuit U1 through the nineteenth resistor R24 and the twentieth resistor R25 as the communication interfaces RXD and TXD, respectively, and the network identification is 485TXD and 485RXD signals. The integrated circuit U1 reads the Mifare card through the MU100 module to obtain the card identity information. The first pin of the MU100 module 301 is connected to V3.3, and one end of the tenth capacitor C6 and the eleventh capacitor C20 is connected to the ground, and the other end of the tenth capacitor C6 and the eleventh capacitor C20 is connected to the ground, and the tenth capacitor C6 and the eleventh capacitor C20 store energy filtering and are connected to the MU100 module 301, and provide stable power supply for the MU100 module.

[0033] The built-in antenna of the MU100 module 301 is symmetrically designed, and the surrounding area is smaller than the area occupied by the MU100 module. Figure 8 The overall circuit impedance is set to 50Ω, and the card reading distance can be up to 1m.

[0034] The working principle of the utility model is:

[0035] The utility model discloses a multifunctional socket, which comprises a socket body, a voltage sampling circuit, a current sampling circuit, an integrated circuit, a RTC module, a memory and a power supply circuit. The external power supply L and N are connected to the voltage sampling circuit and the current sampling circuit comprising a precision manganese copper resistor, and the strong electric signal is converted into a weak electric signal and connected to the integrated circuit U1. The integrated circuit processes the voltage sampling signal and the current sampling signal through filtering, analog-digital conversion, addition and multiplication to obtain digital signals, and processes the calculation data of power, voltage, current, power factor and frequency, and saves the results in the memory U2. The RTC module provides a clock source for the multifunctional socket through G1, and the clock source provides clock information for the integrated circuit, and the clock information provides the year, month, day, hour, minute and second. When the socket is connected to the external power equipment through the 2-hole or 3-hole, the multifunctional socket is always sampling the voltage and current signals. When the power equipment starts to work, if the power (voltage * current) is greater than 4.4W, the multifunctional socket records the starting time of the power equipment. When the power equipment stops working, if the power (voltage * current) is less than 4.4W, the multifunctional socket records the ending time of the power equipment.

Claims

1. A multi-functional socket, characterized in that, Includes the SoC main control unit, communication / positioning unit, and metering sampling circuit; The metering sampling circuit is used to provide voltage and current sampling signals to the metering module; The SoC main control unit converts the voltage and current sampling signals provided by the metering sampling circuit into digital signals and obtains power to monitor voltage, current, and usage time data. The communication / positioning unit is used to report the user's start time, stop time, electrical parameters and power metering data to the cloud platform, and at the same time report the user's longitude, latitude and altitude location information to the cloud platform.

2. The multi-functional socket according to claim 1, characterized in that, The metering sampling circuit includes a voltage divider sampling circuit and a current sampling circuit; The voltage divider sampling circuit includes a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, and a seventh capacitor connected in series. One end of the fifth resistor is connected to the AC mains voltage input N, one end of the tenth resistor is connected to the AC mains voltage input L and grounded, the seventh capacitor is connected in parallel across the tenth resistor, and the voltage signal Up between the ninth and tenth resistors is connected to the SoC main control unit. The current sampling circuit includes a manganin resistor, a twelfth resistor, an eighth capacitor, a thirteenth resistor, a ninth capacitor, a fourteenth resistor, a fifteenth resistor, and a sixteenth resistor. Pin 3 of the manganin resistor is connected to the AC mains voltage input L, and pin 1 serves as the output Lout. Pin 1 outputs I- current, which is connected to the SoC main control unit via the twelfth resistor. Pin 2 outputs I+ current, which is connected to the SoC main control unit via the thirteenth resistor. The fourteenth resistor is connected in parallel between the I+ and I- current circuits. The fifteenth and sixteenth resistors are connected in series and then in parallel between the I+ and I- current circuits, located before the twelfth and thirteenth resistors. The eighth and ninth capacitors are connected in series and then in parallel between the I+ and I- current circuits, located after the twelfth and thirteenth resistors. The fifteenth and sixteenth resistors are connected to the eighth and ninth capacitors and grounded.

3. The multi-functional socket according to claim 1, characterized in that, The SoC main control unit includes a metering module, an RTC module, and a UART communication module; the metering module is used to convert the voltage and current sampling signals provided by the metering sampling circuit into digital signals and obtain power to monitor voltage, current, and usage time data. The RTC module is used to support temperature compensation; the UART communication module is used to communicate with the communication / positioning unit.

4. The multi-functional socket according to claim 3, characterized in that, The metering module includes a clock crystal oscillator, an integrated circuit, a delay reset circuit, a sixth capacitor, a fifth capacitor, a third capacitor, a second capacitor, a fourth capacitor, a first capacitor, a first resistor, a second resistor, and a memory; the integrated circuit is model V9821S; the memory is model 24LC04. One end of the first capacitor is connected to V3.3 and connected to pin 5 of the integrated circuit, while the other end is grounded; the clock crystal is directly connected to pins 1 and 48 of the integrated circuit; pins 40 and 41 of the integrated circuit are connected to pins 5 and 6 of the memory via the IIC bus; the IIC bus is connected to the V3.3V power supply via the first and second resistors; pin 8 of the memory is connected to one end of the second capacitor and connected to the V3.3V power supply, while the other end of the second capacitor is grounded and connected to pin 7; pins 1, 2, 3, and 4 of the memory are grounded; one end of the delay reset circuit is connected to the V3.3V power supply, while the other end is connected to pin 47 of the integrated circuit; one end of the fourth capacitor is connected to pin 7 of the integrated circuit, while the other end is grounded (GND); one end of the fifth capacitor is connected to pin 3 of the integrated circuit, while the other end is grounded; one end of the sixth capacitor is connected to pin 4 of the integrated circuit, while the other end is grounded.

5. The multi-functional socket according to claim 4, characterized in that, The delayed reset circuit includes a third resistor and a third capacitor; one end of the third resistor and one end of the third capacitor are connected together and connected to pin 47 of the integrated circuit; the other end of the third resistor is connected to the V3.3 power supply and the other end of the third capacitor is grounded.

6. The multi-functional socket according to claim 4, characterized in that, The communication / positioning unit includes a communication module, a seventeenth resistor, an eighteenth resistor, an eighth capacitor, and a ninth capacitor; the communication module has a built-in 4G radio frequency chip and a GPS positioning chip, and its fifth and sixth pins are connected to pins 45 and 46 of the integrated circuit through the seventeenth and eighteenth resistors, respectively. The first pin of the communication module is connected to an external 5V power supply and one end of the eighth and ninth capacitors. The second and seventh pins are grounded, and the other ends of the eighth and ninth capacitors are grounded.

7. The multi-functional socket according to claim 1, characterized in that, It also features an NFC identification unit, which identifies the user's identity information and reports it to the cloud platform wirelessly via the communication / positioning unit.

8. The multi-functional socket according to claim 7, characterized in that, The NFC identification unit includes a MU100 module, an onboard antenna, and a Mifare card. The MU100 module's card reading function reads standard Mifare cards, S50 cards, and S70 cards through the onboard antenna. The first pin of the MU100 module is connected to V3.3 and one end of the tenth and eleventh capacitors, while the other ends of the tenth and eleventh capacitors are grounded. The third and fourth pins of the MU100 module are connected to the SoC main control unit through the nineteenth and twentieth resistors, respectively.

9. The multi-functional socket according to claim 1, characterized in that, It also includes an on / off unit, which is an expandable unit used to control the on / off of the load.

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