CN112003339A - Sweep sign indicating number charging source - Google Patents

Sweep sign indicating number charging source Download PDF

Info

Publication number
CN112003339A
CN112003339A CN202010674391.0A CN202010674391A CN112003339A CN 112003339 A CN112003339 A CN 112003339A CN 202010674391 A CN202010674391 A CN 202010674391A CN 112003339 A CN112003339 A CN 112003339A
Authority
CN
China
Prior art keywords
resistor
circuit
power supply
relay
detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010674391.0A
Other languages
Chinese (zh)
Inventor
许海洲
古国辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Rihuida Power Supply Co ltd
Original Assignee
Shenzhen Rihuida Power Supply Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Rihuida Power Supply Co ltd filed Critical Shenzhen Rihuida Power Supply Co ltd
Priority to CN202010674391.0A priority Critical patent/CN112003339A/en
Publication of CN112003339A publication Critical patent/CN112003339A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/10—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data

Abstract

The invention discloses a code scanning charging power supply, and relates to the technical field of charging power supplies; the system comprises a power supply circuit, an MCU master control circuit, a relay detection and control circuit, a control key circuit, a MODULE MODULE circuit and an SIM card circuit; the power supply circuit is respectively connected to the MCU main control circuit and the MODULE MODULE circuit and is used for providing electric energy required by work; the control key circuit is connected between the MCU main control circuit and the MODULE MODULE circuit; the SIM card circuit is electrically connected to the MODULE MODULE circuit; the MCU master control circuit comprises a chip U1 with operation processing capability, the relay detection and control circuit is electrically connected to the chip U1 of the MCU master control circuit, and the relay detection and control circuit comprises a power supply end, a relay control circuit, a current and voltage detection end and a relay detection circuit; the invention has the beneficial effects that: the code scanning charging power supply can detect the current input voltage, current and power.

Description

Sweep sign indicating number charging source
Technical Field
The invention relates to the technical field of charging power supplies, in particular to a code scanning charging power supply.
Background
With the rapid development of the internet, cloud computing and big data technology, sharing economy is more and more appeared in various fields of social life, the way of life of people is gradually changed by sharing automobiles, bicycles and chargers, and although the sharing economy does not create new value, the sharing economy allocates social idle resources better by means of the internet technology, so that the utilization rate of resources is effectively improved, the life of people is facilitated, and the social production efficiency is indirectly improved.
The current mobile electronic product application prospect appears a lot of kinds very extensively, will often demand to charge because of the product is from taking battery capacity is limited, then just one kind has appeared in public place and has swept two-dimensional code and provide the function of charging, but can't show current input voltage, electric current and power on mobile device among the prior art, and the user can only see the residual capacity of mobile device.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a code scanning charging power supply which can detect the current input voltage, current and power.
The technical scheme adopted by the invention for solving the technical problems is as follows: in a code scanning charging power supply, the improvement comprising: the system comprises a power supply circuit, an MCU master control circuit, a relay detection and control circuit, a control key circuit, a MODULE MODULE circuit and an SIM card circuit;
the power supply circuit is respectively connected to the MCU main control circuit and the MODULE MODULE circuit and is used for providing electric energy required by work; the control key circuit is connected between the MCU main control circuit and the MODULE MODULE circuit; the SIM card circuit is electrically connected to the MODULE MODULE circuit;
the MCU master control circuit comprises a chip U1 with operation processing capability, the relay detection and control circuit is electrically connected to the chip U1 of the MCU master control circuit, and the relay detection and control circuit comprises a power supply end, a relay control circuit, a current and voltage detection end and a relay detection circuit; the power supply end is respectively electrically connected with the relay, the current and voltage detection end and the relay detection circuit, and the current and voltage detection end and the relay detection circuit are both electrically connected to the relay; the relay control circuit, the current and voltage detection end and the relay detection circuit are electrically connected to a chip U1, the relay control circuit is connected to the relay, and the relay control circuit is used for controlling the on-off of the relay according to detection results of the relay detection circuit and the current and voltage detection end.
In the above structure, the current and voltage detection terminal includes a manganin resistor MT1, a resistor R6, a resistor R7, a capacitor C11, a capacitor C12 and two detection output ports;
the manganin resistor MT1 is connected in parallel between the power supply end and the detection port of the relay, and the two detection output ports are used for detecting the voltage and the current at the two ends of the manganin resistor MT 1;
one of the detection output ports and the power supply end are provided with a resistor R7, and a capacitor C12 is arranged between the detection output port and the grounding end;
a resistor R6 is arranged between the other detection output port and the detection port of the relay, and a capacitor C11 is arranged between the detection output port and the ground terminal.
In the above structure, the relay control circuit includes a resistor R18, a resistor R17, an NPN transistor Q1, a diode D1, a resistor R16, a capacitor C20, and a control signal input terminal;
the resistor R18 is connected between the control signal input end and the base electrode of the NPN type triode Q1, the emitting electrode of the NPN type triode Q1 is grounded, and the resistor R17 is connected between the base electrode and the collecting electrode of the NPN type triode Q1;
the relay is provided with a first control port RA1 and a second control port RB1, the collector of an NPN type triode Q1 is connected with the second control port RB1, the diode D1 is arranged between the first control port RA1 and the second control port RB1, and the positive electrode end of the diode D1 is connected with the second control port RB 1;
the resistor R16 is disposed between the power supply terminal VDD and the first control port RA1, and a capacitor C20 is disposed between the power supply terminal VDD and the ground terminal.
In the above structure, the NPN transistor Q1 is of the type LMBTA06LT 1G.
In the above structure, the relay detection circuit includes a photocoupler U4, a diode D4, a capacitor C33, a resistor R33, and a detection signal port;
the photoelectric coupler U4 has two input ends and two output ends, wherein one input end is connected to the relay, the other input end is connected to the power supply end, and the diode D4 is connected between the two input ends;
one output end of the photoelectric coupler is grounded, the capacitor C33 is connected between the two output ends, the other output end of the photoelectric coupler is connected to the detection signal port, and the resistor R33 is arranged between the other output end of the photoelectric coupler U4 and the power supply end VCPU.
In the structure, the model of the photoelectric coupler is ORPC-817 SC.
In the above structure, the model of the chip U1 is QS 1211B.
In the structure, the MODULE MODULE circuit comprises a chip J3-A, wherein the model of the chip J3-A is L501.
In the above structure, the code scanning charging power supply further includes an indicator light circuit, and the indicator light circuit is composed of a network indicator light circuit, an electric energy pulse indicator light circuit, and a status indicator light circuit.
In the above structure, the network indicator light circuit includes a light emitting diode L1, a resistor R52, a resistor R63, and an NPN transistor Q6;
the light emitting diode L1 and the resistor R52 are connected in series between a power supply end VCPU and a collector of an NPN type triode Q6, a base electrode of the NPN type triode Q6 is a NETLIGHT port, the NETLIGHT port is connected with a MODULE MODULE circuit, the resistor R63 is arranged between a base electrode of the NPN type triode Q6 and a ground end, and an emitting electrode of the NPN type triode Q6 is grounded;
the electric energy pulse indicator lamp circuit comprises a resistor R50, a light emitting diode L2, a resistor R51 and a light emitting diode L3, wherein the resistor R50 and the light emitting diode L2 are connected between a chip U1 and a ground end in series, and the resistor R51 and the light emitting diode L3 are connected between a chip U1 and the ground end in series;
the state indicating lamp circuit comprises a light emitting diode L4, a resistor R53, a resistor R59, a resistor R61, an NPN type triode Q7, a light emitting diode L5, a resistor R54, a resistor R60, a resistor R62 and an NPN type triode Q8; the light emitting diode L4 and the resistor R53 are connected in series between a power supply end VCPU and a collector of an NPN type triode Q7, the chip U1 is provided with an LED-STATUS1 port, a resistor R59 is arranged between the LED-STATUS1 port and a base electrode of an NPN type triode Q7, a resistor R61 is connected between the base electrode of the NPN type triode Q7 and an emitter electrode of an NPN type triode Q7, and the emitter electrode of the NPN type triode Q7 is grounded; the light emitting diode L5 and the resistor R54 are connected in series between a power supply end VCPU and a collector of the NPN type triode Q8, the chip U1 is provided with an LED-STATUS2 port, a resistor R60 is arranged between the LED-STATUS2 port and a base electrode of the NPN type triode Q8, a resistor R62 is connected between the base electrode of the NPN type triode Q8 and an emitter electrode of the NPN type triode Q8, and the emitter electrode of the NPN type triode Q8 is grounded.
The invention has the beneficial effects that: after a user scans and provides a specific two-dimensional code and contacts APP software to carry out data communication, the MCU main control circuit can carry out instruction response according to the operation of the user, when the user provides an instruction for opening the charging equipment, the MCU main control circuit can provide a signal to control the relay to open the charging equipment, and an indication circuit LED provides an indication, when the user uses the charging equipment, the MCU main control circuit can automatically calculate the current input voltage current and the current input power according to the voltage current at the two ends of the manganin resistor and then display the current input voltage current and the current input power on the APP software of the mobile equipment. Therefore, the code scanning charging power supply can detect the current input voltage, current and power and display the current input voltage, current and power on the mobile device.
Drawings
Fig. 1 is a schematic structural diagram of a code scanning charging power supply according to the present invention.
Fig. 2 is a schematic structural diagram of an MCU master control circuit of a code scanning charging power supply according to the present invention.
FIG. 3 is a schematic block diagram of a relay detection and control circuit of a code scanning charging power supply of the present invention.
Fig. 4 is a schematic diagram of a relay detection and control circuit of a code-scanning charging power supply according to the present invention.
Fig. 5 is a schematic structural diagram of a power supply circuit of a code-scanning charging power supply according to the present invention.
Fig. 6 is a schematic structural diagram of a SIM card circuit of a code scanning charging power supply according to the present invention.
Fig. 7 is a schematic diagram of a MODULE circuit of a code scanning charging power supply according to the present invention.
Fig. 8, fig. 9 and fig. 10 are schematic structural diagrams of an indicator light circuit of a code scanning charging power supply according to the present invention.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
Referring to fig. 1, the invention discloses a code scanning charging power supply, which automatically turns on a power supply device through a relay after a user scans a provided two-dimensional code, provides charging power for the user, and can automatically display voltage, power, time and the like on software. Specifically, the code scanning charging power supply comprises a power supply circuit 10, an MCU main control circuit 50, a relay detection and control circuit 20, a control key circuit 60, a MODULE circuit 70 and an SIM card circuit 80; the power supply circuit 10 is respectively connected to the MCU main control circuit 50 and the MODULE circuit 70, and is configured to provide electric energy required by operation; the control key circuit 60 is connected between the MCU main control circuit 50 and the MODULE circuit 70; the SIM card circuit 80 is electrically connected to the MODULE circuit 70; as shown in fig. 2, the MCU main control circuit 50 includes a chip U1 with operation processing capability, the model number of the chip U1 is QS1211B, which is an electric power chip, the structure and the operation principle of which are well-established in the prior art, and this embodiment will not be described in detail, and it can be understood that the chip U1 needs to be matched with a peripheral circuit to implement its specific function, but this structure also belongs to a well-established technology in the prior art, and will not be described in detail in this embodiment. The electric connection of the relay detection and control circuit 20 is on the chip U1 of the MCU main control circuit 50, the power supply circuit 10 is used for providing the electric energy for each part circuit during operation, the relay detection and control circuit 20 is used for detecting the current and voltage of the relay operation, and send the detection result to the chip U1 of the MCU main control circuit 50, the logic through the chip U1 is transported, and then the signal is sent to the relay detection and control circuit 20, thereby realizing the control of the on-off of the relay. In this process, the MODULE circuit 70 communicates with the mobile network provider through the SIM circuit, and displays the wireless network contact status and charging data on the formulated APP software of the mobile device. In addition, the control key circuit 60 is used to implement control of the code scanning charging power supply, for example, implement functions such as circuit reset, and its implementation is a common scheme in the prior art, so detailed description is not given in this embodiment.
As shown in fig. 3, which is a schematic circuit diagram of the relay detection and control circuit 20, in this embodiment, the relay detection and control circuit 20 includes a power supply terminal 201, a relay 202, a relay control circuit 203, a current and voltage detection terminal 204, and a relay detection circuit 205, where the power supply terminal 201 includes an ac incoming line, a socket, and the like, which are not described in detail in this embodiment; the power supply terminal 201 is electrically connected with the relay 202, the current and voltage detection terminal 204 and the relay detection circuit 205 respectively, and the current and voltage detection terminal 204 and the relay detection circuit 205 are both electrically connected to the relay 202; the relay control circuit 203 is connected to the relay, and the relay control circuit 203 is used for controlling the on-off of the relay according to the detection results of the relay detection circuit 205 and the current and voltage detection terminal 204. It should be noted that the relay detection circuit 205 is used for detecting the voltage and current of the relay, and the relay control circuit 203 and the relay detection circuit 205 are connected to the chip U1, and specific embodiments thereof will be further described below.
As shown in fig. 4, in the present embodiment, the above-mentioned relays, the relay control circuit 203, the current and voltage detection terminal 204 and the relay detection circuit 205 are provided with two sets, wherein one set is the first relay 301, the first relay control circuit 302, the first current and voltage detection terminal 303 and the first relay detection circuit 304, and the other set is the second relay 401, the second relay control circuit 402, the second current and voltage detection terminal 403 and the second relay detection circuit 404. In this embodiment, the first current/voltage detecting terminal 303 includes a manganin resistor MT1, a resistor R6, a resistor R7, a capacitor C11, a capacitor C12, and two detection output ports; the manganin resistor MT1 is connected in parallel between the power supply end 201 and the detection port of the relay, and the two detection output ports are used for detecting the voltage and the current at the two ends of the manganin resistor MT 1; one of the detection output ports and the power supply terminal 201 are provided with a resistor R7, and a capacitor C12 is arranged between the detection output port and the ground terminal; a resistor R6 is disposed between the other detection output port and the detection port of the relay, and a capacitor C11 is disposed between the detection output port and the ground terminal, in this embodiment, the two detection output ports are I1P and I1N, respectively.
With continued reference to fig. 4, for the first relay control circuit 302, the present invention provides a specific embodiment, where the relay control circuit includes a resistor R18, a resistor R17, an NPN transistor Q1, a diode D1, a resistor R16, a capacitor C20, and a control signal input terminal; the resistor R18 is connected between the control signal input end and the base electrode of the NPN type triode Q1, the emitting electrode of the NPN type triode Q1 is grounded, and the resistor R17 is connected between the base electrode and the collecting electrode of the NPN type triode Q1; the relay is provided with a first control port RA1 and a second control port RB1, the collector of an NPN type triode Q1 is connected with the second control port RB1, the diode D1 is arranged between the first control port RA1 and the second control port RB1, and the positive electrode end of the diode D1 is connected with the second control port RB 1; the resistor R16 is disposed between the power supply terminal VDD and the first control port RA1, and a capacitor C20 is disposed between the power supply terminal VDD and the ground terminal. In this embodiment, the NPN transistor Q1 has a model number of LMBTA06LT1G, and the control signal input terminal is RLY-OPEN 1. It should be noted that the first relay 301 and the second relay 401 in fig. 4 are of the type HF115F-I, and belong to small high-power relays commonly used in the prior art, and the structure and corresponding function thereof are well known in the art, so the detailed description of the structure thereof is not provided in this embodiment.
As for the first relay detection circuit 304, as shown in fig. 2, the present invention provides a specific embodiment, and the relay detection circuit includes a photocoupler U4, a diode D4, a capacitor C33, a resistor R33, and a detection signal port; the photoelectric coupler U4 has two input ends and two output ends, wherein one input end is connected to the relay, the other input end is connected to the power supply end 201, and the diode D4 is connected between the two input ends; one output end of the photoelectric coupler is grounded, the capacitor C33 is connected between the two output ends, the other output end of the photoelectric coupler is connected to the detection signal port, and the resistor R33 is arranged between the other output end of the photoelectric coupler U4 and the power supply end VCPU. In this embodiment, a plurality of resistors connected in series are disposed between the power supply terminal 201 and the other input terminal of the photocoupler U4; the model of the photoelectric coupler is ORPC-817 SC. In addition, the detection signal port is RLY-CHK 1.
In the above embodiment, referring to fig. 4, the first relay control circuit 302, the first current/voltage detecting terminal 303 and the first relay detecting circuit 304 all need to be connected to the same chip with output processing, as shown in fig. 2, the chip U1 has pins respectively connected to the detection output port I1P, the detection output port I1N, the control signal input terminal RLY-OPEN1 and the detection signal port RLY-CHK 1.
Through the structure, the first relay detection circuit 304 is used for detecting the working voltage and current of the relay and transmitting the detection result to the chip U1, and the chip U1 sends a control signal to the first relay control circuit 302 according to the detection result to control the relay; when a user uses the charging equipment, the chip U1 can automatically calculate the current input voltage, current and power according to the voltage and current at the two ends of the detected manganin resistor MT1, and can also display the current input voltage, current and power on a display screen; therefore, the current input voltage, current and power can be detected and calculated, and the control of the relay is conveniently realized.
As shown in fig. 5, for the power supply circuit 10, the present invention provides a specific embodiment, which includes a voltage regulator MC7805K, a capacitor C18, a capacitor C19, a resistor R8, a resistor R15, a capacitor C16, and a capacitor C17, which are connected as shown in fig. 5, wherein the voltage output terminal VBAT ranges from 3.3V to 5V, and normally, the 5V output is directly used. As shown in fig. 6, for the SIM card circuit 80, the present invention provides an embodiment including a SIM card chip J1, and a VCC interface, a USIM _ RST interface, a USIM _ CLK interface, a USIM _ DATA interface, and a USIM _ DET interface are formed on the SIM card chip J1, and these interfaces are all electrically connected to the MODULE circuit 70. The power supply circuit 10 and the SIM card circuit 80 are well-established in the art, and will not be described in detail in this embodiment.
As shown in fig. 7, for the MODULE circuit 70, the invention provides a specific embodiment, the MODULE circuit 70 includes a chip J3-a, whose model is L501, and L501 is a Cat1 MODULE with small package, stable and reliable performance, and LCC + LGA, which can well meet the application requirements of customers for high cost performance and low power consumption. The size of the L501 is only 30 × 2.9mm, so that the requirement of customers on small-size module products can be met, and the customers can conveniently reduce the product size and optimize the product cost; the LCC + LGA package can realize the rapid production of the module through standard SMT equipment, so that the module can be widely applied to the IOT field, such as public network talkback, mobile payment, security protection, vehicle-mounted, DTU, asset tracking, economy sharing and the like. The chip J3-A is provided with a USIM _ RST pin, a USIM _ CLK pin, a USIM _ DET pin and a USIM _ DATA pin which are connected with the SIM card chip J1, and the chip J3-A is also provided with a UART1_ RX pin, a UART1_ TX pin, a PWRKEY pin, a RESET pin, a VBUS pin and a VDD _1V8 pin which are electrically connected with the control key circuit 60; in addition, the chip J3-A is also provided with a NETLIGHT pin which is electrically connected with the indicating lamp circuit. Since the chip J3-A is a well-established product in the prior art, the structure thereof will not be described in detail.
As shown in fig. 1, the code scanning charging power supply further includes an indicator light circuit 90, the indicator light circuit 90 is electrically connected to the MCU main control circuit 50 and the MODULE circuit 70, as shown in fig. 8 to 10, in this embodiment, the indicator light circuit 90 is composed of a network indicator light circuit, an electric energy pulse indicator light circuit, and a status indicator light circuit, wherein as shown in fig. 8, the network indicator light circuit includes a light emitting diode L1, a resistor R52, a resistor R63, and an NPN type triode Q6; the light emitting diode L1 and the resistor R52 are connected in series between a power supply end VCPU and a collector of the NPN type triode Q6, a base of the NPN type triode Q6 is a NETLIGHT port, the port is connected with a NETLIGHT pin of the MODULE circuit 70, the resistor R63 is arranged between a base of the NPN type triode Q6 and a ground end, and an emitter of the NPN type triode Q6 is grounded; the indication of the network status is effected by means of a light-emitting diode L1.
As shown in fig. 9, the electric energy pulse indicating lamp circuit includes a resistor R50, a light emitting diode L2, a resistor R51 and a light emitting diode L3, wherein the resistor R50 and the light emitting diode L2 are connected in series between a chip U1 and a ground terminal, and the resistor R51 and the light emitting diode L3 are connected in series between a chip U1 and the ground terminal; the light emitting diodes L2 and L3 are electric energy pulse indicating lamps.
As shown in fig. 10, the status indicator lamp circuit includes a light emitting diode L4, a resistor R53, a resistor R59, a resistor R61, an NPN transistor Q7, a light emitting diode L5, a resistor R54, a resistor R60, a resistor R62, and an NPN transistor Q8; the light emitting diode L4 and the resistor R53 are connected in series between a power supply end VCPU and a collector of an NPN type triode Q7, the chip U1 is provided with an LED-STATUS1 port, a resistor R59 is arranged between the LED-STATUS1 port and a base electrode of an NPN type triode Q7, a resistor R61 is connected between the base electrode of the NPN type triode Q7 and an emitter electrode of an NPN type triode Q7, and the emitter electrode of the NPN type triode Q7 is grounded; the light emitting diode L5 and the resistor R54 are connected in series between a power supply end VCPU and a collector of the NPN type triode Q8, the chip U1 is provided with an LED-STATUS2 port, a resistor R60 is arranged between the LED-STATUS2 port and a base electrode of the NPN type triode Q8, a resistor R62 is connected between the base electrode of the NPN type triode Q8 and an emitter electrode of the NPN type triode Q8, and the emitter electrode of the NPN type triode Q8 is grounded. The light emitting diodes L4 and L5 are status indicators, and when the light emitting diodes L4 and L5 blink, a fault is indicated, which includes overcurrent and abnormal relay.
Through the circuit structure, after the external power supply is input, the voltage is reduced through the voltage stabilizer MC7805K of the power supply circuit 10, the MCU main control circuit 50 and the MODULE MODULE circuit 70 are supplied with power, the MCU main control circuit 50 and the MODULE MODULE circuit 70 start to reset, the indicator light circuit provides an indication, and the MODULE MODULE circuit 70 can communicate with a mobile network provider according to the SIM card chip to display the wireless network contact state and other data on the established mobile device APP software. After a user scans and provides a specific two-dimensional code and contacts APP software to carry out data communication, the MCU main control circuit 50 can carry out instruction response according to the operation of the user, when the user provides an instruction for opening the charging device, the MCU main control circuit 50 can provide a signal to control the relay to open the charging device, and the indication circuit LED provides an indication, when the user uses the charging device, the MCU main control circuit 50 can automatically calculate the current input voltage current and the current input power according to the voltage current at the two ends of the manganin resistor and then display the current input voltage current and the current input power on the APP software of the mobile device. Therefore, the code scanning charging power supply can detect the current input voltage, current and power and display the current input voltage, current and power on the mobile device.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides a sweep a yard charging source which characterized in that: the system comprises a power supply circuit, an MCU master control circuit, a relay detection and control circuit, a control key circuit, a MODULE MODULE circuit and an SIM card circuit;
the power supply circuit is respectively connected to the MCU main control circuit and the MODULE MODULE circuit and is used for providing electric energy required by work; the control key circuit is connected between the MCU main control circuit and the MODULE MODULE circuit; the SIM card circuit is electrically connected to the MODULE MODULE circuit;
the MCU master control circuit comprises a chip U1 with operation processing capability, the relay detection and control circuit is electrically connected to the chip U1 of the MCU master control circuit, and the relay detection and control circuit comprises a power supply end, a relay control circuit, a current and voltage detection end and a relay detection circuit; the power supply end is respectively electrically connected with the relay, the current and voltage detection end and the relay detection circuit, and the current and voltage detection end and the relay detection circuit are both electrically connected to the relay; the relay control circuit, the current and voltage detection end and the relay detection circuit are electrically connected to a chip U1, the relay control circuit is connected to the relay, and the relay control circuit is used for controlling the on-off of the relay according to detection results of the relay detection circuit and the current and voltage detection end.
2. The code-scanning charging power supply of claim 1, wherein: the current and voltage detection end comprises a manganin resistor MT1, a resistor R6, a resistor R7, a capacitor C11, a capacitor C12 and two detection output ports;
the manganin resistor MT1 is connected in parallel between the power supply end and the detection port of the relay, and the two detection output ports are used for detecting the voltage and the current at the two ends of the manganin resistor MT 1;
one of the detection output ports and the power supply end are provided with a resistor R7, and a capacitor C12 is arranged between the detection output port and the grounding end;
a resistor R6 is arranged between the other detection output port and the detection port of the relay, and a capacitor C11 is arranged between the detection output port and the ground terminal.
3. The code-scanning charging power supply of claim 1, wherein: the relay control circuit comprises a resistor R18, a resistor R17, an NPN type triode Q1, a diode D1, a resistor R16, a capacitor C20 and a control signal input end;
the resistor R18 is connected between the control signal input end and the base electrode of the NPN type triode Q1, the emitting electrode of the NPN type triode Q1 is grounded, and the resistor R17 is connected between the base electrode and the collecting electrode of the NPN type triode Q1;
the relay is provided with a first control port RA1 and a second control port RB1, the collector of an NPN type triode Q1 is connected with the second control port RB1, the diode D1 is arranged between the first control port RA1 and the second control port RB1, and the positive electrode end of the diode D1 is connected with the second control port RB 1;
the resistor R16 is disposed between the power supply terminal VDD and the first control port RA1, and a capacitor C20 is disposed between the power supply terminal VDD and the ground terminal.
4. The code-scanning charging power supply of claim 3, wherein: the model of the NPN type triode Q1 is LMBTA06LT 1G.
5. The code-scanning charging power supply of claim 1, wherein: the relay detection circuit comprises a photoelectric coupler U4, a diode D4, a capacitor C33, a resistor R33 and a detection signal port;
the photoelectric coupler U4 has two input ends and two output ends, wherein one input end is connected to the relay, the other input end is connected to the power supply end, and the diode D4 is connected between the two input ends;
one output end of the photoelectric coupler is grounded, the capacitor C33 is connected between the two output ends, the other output end of the photoelectric coupler is connected to the detection signal port, and the resistor R33 is arranged between the other output end of the photoelectric coupler U4 and the power supply end VCPU.
6. The code-scanning charging power supply of claim 5, wherein: the model of the photoelectric coupler is ORPC-817 SC.
7. The code-scanning charging power supply of claim 1, wherein: the model of the chip U1 is QS 1211B.
8. The code-scanning charging power supply of claim 1, wherein: the MODULE MODULE circuit comprises a chip J3-A, wherein the model of the chip J3-A is L501.
9. The code-scanning charging power supply of claim 1, wherein: sweep sign indicating number charging power supply still includes the pilot lamp circuit, and the pilot lamp circuit comprises network pilot lamp circuit, electric energy pulse pilot lamp circuit and status indicator lamp circuit.
10. The code-scanning charging power supply of claim 9, wherein: the network indicator lamp circuit comprises a light emitting diode L1, a resistor R52, a resistor R63 and an NPN type triode Q6;
the light emitting diode L1 and the resistor R52 are connected in series between a power supply end VCPU and a collector of an NPN type triode Q6, a base electrode of the NPN type triode Q6 is a NETLIGHT port, the NETLIGHT port is connected with a MODULE MODULE circuit, the resistor R63 is arranged between a base electrode of the NPN type triode Q6 and a ground end, and an emitting electrode of the NPN type triode Q6 is grounded;
the electric energy pulse indicator lamp circuit comprises a resistor R50, a light emitting diode L2, a resistor R51 and a light emitting diode L3, wherein the resistor R50 and the light emitting diode L2 are connected between a chip U1 and a ground end in series, and the resistor R51 and the light emitting diode L3 are connected between a chip U1 and the ground end in series;
the state indicating lamp circuit comprises a light emitting diode L4, a resistor R53, a resistor R59, a resistor R61, an NPN type triode Q7, a light emitting diode L5, a resistor R54, a resistor R60, a resistor R62 and an NPN type triode Q8; the light emitting diode L4 and the resistor R53 are connected in series between a power supply end VCPU and a collector of an NPN type triode Q7, the chip U1 is provided with an LED-STATUS1 port, a resistor R59 is arranged between the LED-STATUS1 port and a base electrode of an NPN type triode Q7, a resistor R61 is connected between the base electrode of the NPN type triode Q7 and an emitter electrode of an NPN type triode Q7, and the emitter electrode of the NPN type triode Q7 is grounded; the light emitting diode L5 and the resistor R54 are connected in series between a power supply end VCPU and a collector of the NPN type triode Q8, the chip U1 is provided with an LED-STATUS2 port, a resistor R60 is arranged between the LED-STATUS2 port and a base electrode of the NPN type triode Q8, a resistor R62 is connected between the base electrode of the NPN type triode Q8 and an emitter electrode of the NPN type triode Q8, and the emitter electrode of the NPN type triode Q8 is grounded.
CN202010674391.0A 2020-07-14 2020-07-14 Sweep sign indicating number charging source Pending CN112003339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010674391.0A CN112003339A (en) 2020-07-14 2020-07-14 Sweep sign indicating number charging source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010674391.0A CN112003339A (en) 2020-07-14 2020-07-14 Sweep sign indicating number charging source

Publications (1)

Publication Number Publication Date
CN112003339A true CN112003339A (en) 2020-11-27

Family

ID=73466898

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010674391.0A Pending CN112003339A (en) 2020-07-14 2020-07-14 Sweep sign indicating number charging source

Country Status (1)

Country Link
CN (1) CN112003339A (en)

Similar Documents

Publication Publication Date Title
CN205751224U (en) A kind of M BUS Selection of chiller device
CN202423743U (en) Smart power socket device and control system
CN203942106U (en) A kind of wireless metering-type socket
CN103901269A (en) Electric quantity measuring device facilitating switching of wiring mode
CN204229615U (en) A kind of voltage transformer wireless supervisory system
CN213425797U (en) Sweep sign indicating number charging source
CN102355053A (en) Transformer air-cooled control ied
CN107632198A (en) A kind of dual power supply electric quantity collector and its application method
CN112003339A (en) Sweep sign indicating number charging source
CN204142835U (en) A kind of single-phase electric energy meter
CN203703309U (en) Circuit control system of remote control valve
CN207053169U (en) One kind is with light-operated longitude and latitude intelligent power protection device
CN109256865A (en) A kind of distribution network automated terminal with self-checking function
CN211044508U (en) MBUS signal conversion communication terminal
CN211377233U (en) Intelligent power distribution cabinet
CN203455388U (en) Current and temperature monitoring system applied to industrial environment
CN206370678U (en) A kind of USB interface of computer output voltage detects protection circuit
CN202179044U (en) Aquaculture automatic feeding device based on short message platform
CN206727707U (en) A kind of distributed wireless charging equipment for mobile phone
CN204596134U (en) A kind of portable gas meter, flow meter kilowatt meter reading-out system
CN204065317U (en) A kind of group-net communication type fault indication device for power distribution line
CN220896334U (en) Battery charging identification circuit and battery
CN212965379U (en) Intelligent control circuit for debugging and supplying power for intelligent electric meter
CN216216886U (en) Dual-mode power line carrier communication device based on Bluetooth
CN111243252B (en) Ultra-low power consumption wireless switch signal monitoring system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination