CN211264373U - Entrance guard monitoring device and intelligent entrance guard reminding system based on Internet of things - Google Patents
Entrance guard monitoring device and intelligent entrance guard reminding system based on Internet of things Download PDFInfo
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- CN211264373U CN211264373U CN201922035786.1U CN201922035786U CN211264373U CN 211264373 U CN211264373 U CN 211264373U CN 201922035786 U CN201922035786 U CN 201922035786U CN 211264373 U CN211264373 U CN 211264373U
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Abstract
The utility model discloses an entrance guard monitoring device and intelligent entrance guard reminding system based on the Internet of things, wherein the entrance guard monitoring device comprises a human body infrared induction circuit, a magnetic induction circuit, a main control circuit, a communication module and a power supply; the intelligent entrance guard reminding system comprises a cloud server, a mobile terminal and the entrance guard monitoring device based on the Internet of things; through human infrared induction circuit can monitor the people and be being monitored the outdoor activity of door, through magnetic induction circuit can monitor the switch state of monitoring the door, makes mobile terminal is through receiving human response signal and switch state signal, can long-range monitoring simultaneously by the people of monitoring the door and in its outer activity, provides more reference information for entrance guard's security.
Description
Technical Field
The utility model relates to an intelligent entrance guard, specific entrance guard monitoring devices and intelligent entrance guard reminder system based on thing networking that says so.
Background
The technology of intelligent access control is quite mature after years of development. The earliest magnetic card gate inhibition has been basically eliminated due to low safety and reliability; later, the IC card access control system is higher in intellectualization than the magnetic card access control system, is safer and more reliable, and is widely applied at present; people's life has been gradually used in the face recognition entrance guard, fingerprint recognition entrance guard, wireless remote control entrance guard that have developed nowadays. For example, the internet access control system disclosed in application No. cn201310630795.x is based on the principle that the internet access control system is composed of a cloud server, an access control unit and a communication terminal, and can realize remote control.
The prior internet access control system has the following defects:
firstly, only the door and the lock are concentrated, and the activity monitoring on people is lacked;
secondly, the door lock needs to be modified during installation, so that the cost is high;
and thirdly, the application place has limitation and is generally only arranged at the position of the main door.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides an entrance guard monitoring devices and intelligent entrance guard warning system based on thing networking to solve current access control system and lack the problem to the activity monitoring of the people that move about in the front of the door.
Solve above-mentioned technical problem, the utility model discloses the technical scheme who adopts as follows:
the utility model provides an entrance guard monitoring devices based on thing networking which characterized in that: the entrance guard monitoring device comprises a human body infrared induction circuit, a magnetic induction circuit, a main control circuit, a communication module and a power supply; the sensing area of the human body infrared sensing circuit is positioned at the outer side of the monitored door, and the human body infrared sensing circuit can be triggered by people entering the sensing area to generate a human body sensing signal; the magnetic induction circuit can monitor the door opening and closing state of the monitored door and generate a corresponding door opening and closing state signal; the main control circuit synchronously sends the human body induction signal and the door opening and closing state signal through the communication module; the power supply is used for supplying power to the entrance guard monitoring device.
Preferably: the communication module is the wiFi module, the power comprises battery and supply circuit, supply circuit be used for with the voltage of battery converts respectively into the adaptation in human infrared induction circuit, magnetic induction circuit, main control circuit and the power supply voltage of wiFi module.
Thereby, the utility model discloses an adopt the wiFi module to carry out wireless network deployment to adopt the battery as power supply, have the advantage that need not the wiring, the installation flexibility is good.
As a preferred embodiment of the present invention: the main control circuit adopts a main controller with the following sleep functions: when the human body infrared induction circuit generates a human body induction signal or the magnetic induction circuit generates a door opening state signal, the main controller is awakened, otherwise, the main controller enters a sleep state; and, the status terminal POW _ CRL of the main controller generates different level status signals when it is woken up and enters a sleep state;
the power supply circuit comprises a first power supply circuit and a second power supply circuit;
the control terminal of the first power supply circuit is connected to a status terminal POW _ CRL of the main controller so that: when the main controller is awakened, the first power supply circuit converts the voltage of the battery into a power supply voltage suitable for the WiFi module, and when the main controller enters a sleep state, the first power supply circuit stops working;
the second power supply circuit continuously converts the voltage of the battery into power supply voltages which are adaptive to the human body infrared induction circuit, the magnetic induction circuit and the main control circuit respectively.
Thereby, effectively reduced the utility model discloses an entrance guard monitoring devices's energy consumption to the operating time of extension battery.
Preferably: the circuit structure of the first power supply circuit is as follows: a first level conversion chip U4 with a model number of SY8088 is adopted, an IN pin of the first level conversion chip U4 is used as an input end of the first power supply circuit and is connected with an anode POW _ IN of the battery, a cathode of the battery is grounded, an IN pin of the first level conversion chip U4 is grounded through a first capacitor C10, an EN pin of the first level conversion chip U4 is used as a control end of the first power supply circuit and is connected with a state terminal POW _ CRL of the main controller, a GND pin of the first level conversion chip U4 is grounded, an LX pin of the first level conversion chip U4 is connected with a first end of a first inductor L1, a second end of the first inductor L1 is used as an output end POW _ WIFI of the first power supply circuit, a second end of the first inductor L1 is divided into two paths, one path is grounded through a second capacitor C12, and the other path is grounded through a third capacitor C11 and a first resistor R8 which are connected IN parallel and a second resistor R9, the FB pin of the first level conversion chip U4 is connected with the connection point of the first resistor R8 and the second resistor R9;
the circuit structure of the second power supply circuit is as follows: a second level conversion chip U5 with model number SY8088 is adopted, an IN pin of the second level conversion chip U5 is used as an input end of the second power supply circuit to be connected with an anode POW _ IN of the battery, a cathode of the battery is grounded, an IN pin of the second level conversion chip U5 is grounded through a fourth resistor C13, an EN pin of the second level conversion chip U5 is used as a control end of the second power supply circuit to be connected with the anode POW _ IN of the battery, a GND pin of the second level conversion chip U5 is grounded, an LX pin of the second level conversion chip U5 is connected with a first end of a second inductor L2, a second end of the second inductor L2 is used as an output end POW of the second power supply circuit, a second end of the second inductor L2 is divided into two paths, one path is grounded through a fifth capacitor C15, and the other path is grounded through a sixth capacitor C14 and a third resistor R10 which are connected IN parallel and then a fourth resistor R11, the FB pin of the second level shift chip U5 is connected to the connection point of the third resistor R10 and the fourth resistor R11.
Preferably: the main controller is a processor U3 with the model number of STM8L051F3P 6.
As a preferred embodiment of the present invention: the human body infrared sensing circuit adopts a human body infrared sensor U2 with the model number of AM612, a VSS pin of the human body infrared sensor U2 is grounded, an OEN pin of the human body infrared sensor U2 is divided into two paths, one path is connected with a VDD pin of the human body infrared sensor U2, the other path is grounded through a fifth resistor R2 and a sixth resistor R3, a SENS pin of the human body infrared sensor U2 is divided into two paths, one path is connected with a connection point of the fifth resistor R2 and the sixth resistor R3, the other path is grounded through a seventh capacitor C3, the VDD pin of the human body infrared sensor U2 is connected with a power supply voltage provided by the power supply, the VDD pin of the human body infrared sensor U2 is divided into two paths, one path is grounded through an eighth capacitor C1, the other path is grounded through an eighth resistor R13 and a ninth capacitor C16 which are connected in parallel after passing through the seventh resistor R12, an OUT pin of the human body infrared sensor U2 is used as an output end of the human body infrared sensing circuit, and the TIME pin of the human body infrared sensor U2 is connected with the connection point of the seventh resistor R12 and the eighth resistor R13.
As a preferred embodiment of the present invention: the communication module adopts a WiFi module U1 with the model of ESP8266, a GND pin of the WiFi module U1 is grounded, a TX0 pin and an RX0 pin are respectively connected with a WiFi signal receiving end RX and a WiFi signal sending end TX of the processor U3, an EN pin is connected with a power supply pin of 3V3, one path of the EN pin is connected with the output end POW _ WIFI of the first power supply circuit, and the other path of the EN pin is grounded through a capacitor C2.
As a preferred embodiment of the present invention: the magnetic induction circuit comprises a matched magnet and a reed switch K1, the magnet and the reed switch K1 are respectively installed on a door plate and a door frame of the monitored door, one end of the reed switch K1 is grounded, the other end of the reed switch K1 is divided into two paths, one path is connected to power supply voltage provided by the power supply through a ninth resistor R5, and the other path is used as the output end of the magnetic induction circuit and used for outputting a door opening and closing state signal to the main control circuit.
Therefore, when the monitored door is in a door opening state, the reed switch K1 is switched off, and the output end of the magnetic induction circuit outputs a high level, namely the door opening state signal; when the monitored door is in a door opening state, the reed switch K1 is closed, and the output end of the magnetic induction circuit outputs a low level, namely the door closing state signal.
As a preferred embodiment of the present invention: the entrance guard monitoring device further comprises an indicator light circuit, and the indicator light circuit is connected with the main control circuit and used for displaying the working state of the main control circuit.
The utility model provides an intelligent entrance guard warning system based on thing networking which characterized in that: the intelligent entrance guard reminding system comprises a cloud server, a mobile terminal and the entrance guard monitoring device based on the Internet of things; and the cloud server receives the human body induction signal and the door opening and closing state signal synchronously sent by the access control monitoring device through the communication module and forwards the human body induction signal and the door opening and closing state signal to the mobile terminal.
Therefore, through human infrared induction circuit can monitor the people and be being monitored the outdoor activity of door, through magnetic induction circuit can monitor the switch door state of monitoring the door, makes mobile terminal is through receiving human response signal and switch door state signal, can long-rangely monitor simultaneously by the people of monitoring the door and in its outer activity, provides more reference information for entrance guard's security.
Compared with the prior art, the utility model discloses following beneficial effect has:
first, the utility model discloses a human infrared induction circuit can monitor the people and be being monitored the outdoor activity of door, through magnetic induction circuit can monitor the switch door state by the monitoring door, makes mobile terminal is through receiving human response signal and switch door state signal, can be simultaneously remote monitoring by the people of monitoring door and activity outside it, provides more reference information for entrance guard's security.
Second, the utility model discloses an adopt the wiFi module to carry out wireless network deployment to adopt the battery as power supply, have the advantage that need not the wiring, the installation flexibility is good.
Third, the utility model discloses an adoption lasts the second supply circuit who supplies power for human infrared induction circuit, magnetic induction circuit and main control circuit, has ensured entrance guard's monitoring devices's normal work to just be the first supply circuit of wiFi module power supply when main control unit is awaken up through the adoption, effectively reduced entrance guard's monitoring devices's energy consumption, with the operating time of extension battery.
Fourth, the utility model discloses further main control unit, human infrared inductor U2, magnetic induction circuit, wiFi module U1 through adopting the low-power consumption have further reduced entrance guard monitoring device's consumption, great extension entrance guard monitoring device's life, through the test, three section AAA battery can satisfy the utility model discloses an entrance guard monitoring device's life time of a year.
Fifth, the utility model has the advantages of with low costs, the reliability is high.
Drawings
The invention will be described in further detail with reference to the following drawings and specific embodiments:
fig. 1 is a schematic circuit block diagram of the intelligent entrance guard reminding system of the present invention;
fig. 2 is a schematic circuit diagram of a first power supply circuit according to the present invention;
fig. 3 is a schematic circuit diagram of a second power supply circuit according to the present invention;
fig. 4 is a schematic circuit diagram of the main control circuit of the present invention;
FIG. 5 is a schematic circuit diagram of the mid-body infrared sensing circuit of the present invention;
fig. 6 is a schematic circuit diagram of a communication module according to the present invention;
fig. 7 is a schematic circuit diagram of the magnetic induction circuit, the indicator light circuit and the key circuit of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and the accompanying drawings to help those skilled in the art to better understand the concept of the present invention, but the scope of the claims of the present invention is not limited to the following embodiments, and all other embodiments obtained without creative work for those skilled in the art will fall within the scope of the present invention without departing from the scope of the present invention.
Example one
As shown in fig. 1 to 7, the utility model discloses an entrance guard monitoring device based on internet of things, which comprises a human body infrared induction circuit, a magnetic induction circuit, a main control circuit, a communication module and a power supply; the sensing area of the human body infrared sensing circuit is positioned at the outer side of the monitored door, and the human body infrared sensing circuit can be triggered by people entering the sensing area to generate a human body sensing signal; the magnetic induction circuit can monitor the door opening and closing state of the monitored door and generate a corresponding door opening and closing state signal; the main control circuit synchronously sends the human body induction signal and the door opening and closing state signal through the communication module; the power supply is used for supplying power to the entrance guard monitoring device. Wherein the monitored portal may be a door of a home, a public corridor, an asylum for the aged, etc.
The above is a basic implementation manner of the first embodiment, and further optimization, improvement and limitation may be performed on the basis of the basic implementation manner:
preferably: the communication module is the wiFi module, the power comprises battery and supply circuit, supply circuit be used for with the voltage of battery converts respectively into the adaptation in human infrared induction circuit, magnetic induction circuit, main control circuit and the power supply voltage of wiFi module.
Thereby, the utility model discloses an adopt the wiFi module to carry out wireless network deployment to adopt the battery as power supply, have the advantage that need not the wiring, the installation flexibility is good.
Example two
On the basis of the first embodiment, the second embodiment further adopts the following preferred structure:
the main control circuit adopts a main controller with the following sleep functions: when the human body infrared induction circuit generates a human body induction signal or the magnetic induction circuit generates a door opening state signal, the main controller is awakened, otherwise, the main controller enters a sleep state; and, the status terminal POW _ CRL of the main controller generates different level status signals when it is woken up and enters a sleep state;
the power supply circuit comprises a first power supply circuit and a second power supply circuit;
the control terminal of the first power supply circuit is connected to a status terminal POW _ CRL of the main controller so that: when the main controller is awakened, the first power supply circuit converts the voltage of the battery into a power supply voltage suitable for the WiFi module, and when the main controller enters a sleep state, the first power supply circuit stops working;
the second power supply circuit continuously converts the voltage of the battery into power supply voltages which are adaptive to the human body infrared induction circuit, the magnetic induction circuit and the main control circuit respectively.
Thereby, effectively reduced the utility model discloses an entrance guard monitoring devices's energy consumption to the operating time of extension battery.
The above is the basic implementation manner of the second embodiment, and further optimization, improvement and limitation can be made on the basis of the basic implementation manner:
preferably: referring to fig. 2, the circuit structure of the first power supply circuit is: a first level conversion chip U4 with a model number of SY8088 is adopted, an IN pin of the first level conversion chip U4 is used as an input end of the first power supply circuit and is connected with an anode POW _ IN of the battery, a cathode of the battery is grounded, an IN pin of the first level conversion chip U4 is grounded through a first capacitor C10, an EN pin of the first level conversion chip U4 is used as a control end of the first power supply circuit and is connected with a state terminal POW _ CRL of the main controller, a GND pin of the first level conversion chip U4 is grounded, an LX pin of the first level conversion chip U4 is connected with a first end of a first inductor L1, a second end of the first inductor L1 is used as an output end POW _ WIFI of the first power supply circuit, a second end of the first inductor L1 is divided into two paths, one path is grounded through a second capacitor C12, and the other path is grounded through a third capacitor C11 and a first resistor R8 which are connected IN parallel and a second resistor R9, the FB pin of the first level conversion chip U4 is connected with the connection point of the first resistor R8 and the second resistor R9;
the first resistor R8 and the second resistor R9 are feedback resistors, which determine the output voltage of the output terminal POW _ WIFI of the first power supply circuit;
therefore, when the main controller is awakened and the state terminal POW _ CRL outputs a high level, the first level conversion chip U4 works, and the output end POW _ WIFI of the first power supply circuit supplies power to the WIFI module, so that the main control circuit can synchronously send out the human body induction signal and the door opening and closing state signal through the WIFI module; when the main controller enters a sleep state and the state terminal POW _ CRL outputs a low level, the first level conversion chip U4 stops working, and the WiFi module stops working due to power failure.
Referring to fig. 3, the circuit structure of the second power supply circuit is: a second level conversion chip U5 with model number SY8088 is adopted, an IN pin of the second level conversion chip U5 is used as an input end of the second power supply circuit to be connected with an anode POW _ IN of the battery, a cathode of the battery is grounded, an IN pin of the second level conversion chip U5 is grounded through a fourth resistor C13, an EN pin of the second level conversion chip U5 is used as a control end of the second power supply circuit to be connected with the anode POW _ IN of the battery, a GND pin of the second level conversion chip U5 is grounded, an LX pin of the second level conversion chip U5 is connected with a first end of a second inductor L2, a second end of the second inductor L2 is used as an output end POW of the second power supply circuit, a second end of the second inductor L2 is divided into two paths, one path is grounded through a fifth capacitor C15, and the other path is grounded through a sixth capacitor C14 and a third resistor R10 which are connected IN parallel and then a fourth resistor R11, the FB pin of the second level shift chip U5 is connected to the connection point of the third resistor R10 and the fourth resistor R11.
The third resistor R10 and the fourth resistor R11 are feedback resistors, which determine the output voltage of the output terminal POW of the second power supply circuit;
therefore, as the EN pin of the second level conversion chip U5 continuously inputs a high level, the second level conversion chip U5 continuously works to continuously convert the voltage of the battery into the power supply voltages respectively adapted to the human body infrared induction circuit, the magnetic induction circuit and the main control circuit.
Preferably: referring to fig. 4, the master controller is a processor U3 of model STM8L051F3P6, the master control circuit is composed of the processor U3 and peripheral circuits thereof, and the peripheral circuits include: a VDD pin of the processor U3 is connected to the output terminal POW of the second power supply circuit, and the other terminal is grounded through a capacitor C4, and a reset circuit composed of a resistor R6 and a capacitor C7, a reserved external crystal oscillator circuit composed of a crystal oscillator Y1, a capacitor C5 and a capacitor C6, and a reserved external crystal oscillator circuit composed of a crystal oscillator Y2, a capacitor C8 and a capacitor C9.
EXAMPLE III
On the basis of the first embodiment or the second embodiment, the third embodiment further adopts the following preferable structure:
referring to fig. 5, the human body infrared sensing circuit adopts a human body infrared sensor U2 with a model of AM612, a VSS pin of the human body infrared sensor U2 is grounded, an OEN pin of the human body infrared sensor U2 is divided into two paths, one path is connected with a VDD pin of the human body infrared sensor U2, the other path is grounded through a fifth resistor R2 and a sixth resistor R3, a SENS pin of the human body infrared sensor U2 is divided into two paths, one path is connected with a connection point of the fifth resistor R2 and the sixth resistor R3, the other path is grounded through a seventh capacitor C3, the VDD pin of the human body infrared sensor U2 is connected to a power supply voltage provided by the power supply, that is, connected with an output terminal POW of the second power supply circuit, the VDD pin of the human body infrared sensor U2 is divided into two paths, one path is grounded through an eighth capacitor C1, the other path is grounded through an eighth resistor R13 and a ninth capacitor C16 which are connected in parallel after passing through the seventh resistor R12, an OUT pin of the human body infrared sensor U2 serves as an output end of the human body infrared sensing circuit and is used for outputting human body sensing signals to the main control circuit, namely the OUT pin of the human body infrared sensor U2 is connected with a human body sensing signal input end IR of the processor U3, and a TIME pin of the human body infrared sensor U2 is connected with a connection point of the seventh resistor R12 and the eighth resistor R13.
The fifth resistor R2 and the sixth resistor R3 are connected in series between the VDD pin of the human body infrared sensor U2 and the ground terminal, and the sensitivity of the human body infrared sensor U2 is adjusted in a voltage division mode; the seventh resistor R12 and the eighth resistor R13 are connected in series between the VDD pin of the human body infrared sensor U2 and the ground terminal, and the retention time of the trigger signal of the human body infrared sensor U2 is adjusted in a voltage division mode; and the eighth capacitor C1 is a filter capacitor of the VDD pin of the human body infrared sensor U2.
Therefore, by utilizing the characteristic that the human body infrared sensor U2 senses human body heat through infrared, when a person enters the infrared sensing area range of the human body infrared sensor U2, the OUT pin of the human body infrared sensor U2 outputs a high-level pulse to the processor U3, and the processor U3 can judge that the person is close to the entrance guard.
Example four
On the basis of any one of the first to third embodiments, the fourth embodiment further adopts the following preferred structure:
referring to fig. 6, the communication module adopts a WiFi module U1 with model number ESP8266, a GND pin of the WiFi module U1 is grounded, a TX0 pin and an RX0 pin are respectively connected to a WiFi signal receiving terminal RX and a WiFi signal transmitting terminal TX of the processor U3, an EN pin is connected to a power supply pin of 3V3, one path is connected to the output terminal POW _ WiFi of the first power supply circuit, and the other path is grounded through a capacitor C2. In addition, the WiFi module U1 may further connect the interface CON4, the interface CON3, and the resistor R7 for burning.
EXAMPLE five
On the basis of any one of the first to fourth embodiments, the fifth embodiment further adopts the following preferred structure:
referring to fig. 7, the magnetic induction circuit includes a matched magnet and a reed switch K1, the magnet and the reed switch K1 are respectively installed on the door panel and the door frame of the monitored door, one end of the reed switch K1 is grounded, the other end of the reed switch K1 is divided into two paths, one path is connected to the power supply voltage provided by the power supply through a ninth resistor R5, that is, the power supply voltage is connected to the output terminal POW of the second power supply circuit, the other path is used as the output terminal of the magnetic induction circuit, and is used for outputting a switch state signal to the main control circuit, that is, the output terminal of the magnetic induction circuit is connected to the switch state signal input terminal SW of the processor U3.
Therefore, when the monitored door is in a door opening state, the reed switch K1 is switched off, and the output end of the magnetic induction circuit outputs a high level, namely the door opening state signal; when the monitored door is in a door opening state, the reed switch K1 is closed, and the output end of the magnetic induction circuit outputs a low level, namely the door closing state signal.
EXAMPLE six
On the basis of any one of the first to fifth embodiments, the sixth embodiment further adopts the following preferred structure:
referring to fig. 7, the entrance guard monitoring device further includes an indicator light circuit, and the indicator light circuit is connected to the main control circuit and is configured to display a working state of the main control circuit. The indicating lamp circuit comprises a resistor R4 and an LED lamp D1.
In addition, a key circuit consisting of a resistor R1 and a key K2 can be arranged for WiFi distribution network.
EXAMPLE seven
The seventh embodiment discloses an intelligent entrance guard reminding system based on the internet of things, which comprises a cloud server, a mobile terminal and the entrance guard monitoring device based on the internet of things in any one of the first to sixth embodiments; and the cloud server receives the human body induction signal and the door opening and closing state signal synchronously sent by the access control monitoring device through the communication module and forwards the human body induction signal and the door opening and closing state signal to the mobile terminal.
Therefore, through human infrared induction circuit can monitor the people and be being monitored the outdoor activity of door, through magnetic induction circuit can monitor the switch door state of monitoring the door, makes mobile terminal is through receiving human response signal and switch door state signal, can long-rangely monitor simultaneously by the people of monitoring the door and in its outer activity, provides more reference information for entrance guard's security.
The present invention is not limited to the above-mentioned embodiments, and according to the above-mentioned contents, according to the common technical knowledge and conventional means in the field, without departing from the basic technical idea of the present invention, the present invention can also make other equivalent modifications, replacements or changes in various forms, all falling within the protection scope of the present invention.
Claims (10)
1. The utility model provides an entrance guard monitoring devices based on thing networking which characterized in that: the entrance guard monitoring device comprises a human body infrared induction circuit, a magnetic induction circuit, a main control circuit, a communication module and a power supply; the sensing area of the human body infrared sensing circuit is positioned at the outer side of the monitored door, and the human body infrared sensing circuit can be triggered by people entering the sensing area to generate a human body sensing signal; the magnetic induction circuit can monitor the door opening and closing state of the monitored door and generate a corresponding door opening and closing state signal; the main control circuit synchronously sends the human body induction signal and the door opening and closing state signal through the communication module; the power supply is used for supplying power to the entrance guard monitoring device.
2. The entrance guard monitoring device based on the internet of things as claimed in claim 1, wherein: the communication module is the wiFi module, the power comprises battery and supply circuit, supply circuit be used for with the voltage of battery converts respectively into the adaptation in human infrared induction circuit, magnetic induction circuit, main control circuit and the power supply voltage of wiFi module.
3. The entrance guard monitoring device based on the internet of things as claimed in claim 2, wherein: the main control circuit adopts a main controller with the following sleep functions: when the human body infrared induction circuit generates a human body induction signal or the magnetic induction circuit generates a door opening state signal, the main controller is awakened, otherwise, the main controller enters a sleep state; and, the status terminal (POW _ CRL) of the main controller generates different level status signals when it is woken up and when it enters a sleep state;
the power supply circuit comprises a first power supply circuit and a second power supply circuit;
the control terminal of the first power supply circuit is connected to a status terminal (POW _ CRL) of the main controller such that: when the main controller is awakened, the first power supply circuit converts the voltage of the battery into a power supply voltage suitable for the WiFi module, and when the main controller enters a sleep state, the first power supply circuit stops working;
the second power supply circuit continuously converts the voltage of the battery into power supply voltages which are adaptive to the human body infrared induction circuit, the magnetic induction circuit and the main control circuit respectively.
4. The entrance guard monitoring device based on the internet of things according to claim 3, characterized in that: the circuit structure of the first power supply circuit is as follows: adopt the model to be SY 8088's first level conversion chip (U4), the IN pin of first level conversion chip (U4) is as the input of first supply circuit connects anodal (POW _ IN) of battery, the negative pole ground connection of battery, the IN pin of first level conversion chip (U4) is through first electric capacity (C10) ground connection, the EN pin of first level conversion chip (U4) is as the control end of first supply circuit connects the state terminal (POW _ CRL) of main controller, the GND pin ground of first level conversion chip (U4), the first end of first inductance (L1) is connected to the LX pin of first level conversion chip (U4), the second end of first inductance (L1) is as the output of first supply circuit (POW _ WIFI), and the second end of first level conversion chip (L1) is divided into two the way, one path is grounded through a second capacitor (C12), the other path is grounded through a second resistor (R9) after passing through a third capacitor (C11) and a first resistor (R8) which are connected in parallel, and an FB pin of the first level conversion chip (U4) is connected with a connection point of the first resistor (R8) and the second resistor (R9);
the circuit structure of the second power supply circuit is as follows: a second level conversion chip (U5) with model number SY8088 is adopted, an IN pin of the second level conversion chip (U5) is used as an input end of the second power supply circuit to be connected with an anode (POW _ IN) of the battery, a cathode of the battery is grounded, an IN pin of the second level conversion chip (U5) is grounded through a fourth capacitor (C13), an EN pin of the second level conversion chip (U5) is used as a control end of the second power supply circuit to be connected with the anode (POW _ IN) of the battery, a GND pin of the second level conversion chip (U5) is grounded, an LX pin of the second level conversion chip (U5) is connected with a first end of a second inductor (L2), a second end of the second inductor (L2) is used as an output end (POW) of the second power supply circuit, and a second end of the second inductor (L2) is divided into two paths, wherein one path is grounded through a fifth capacitor (C15), the other path of the current is grounded through a fourth resistor (R11) after passing through a sixth capacitor (C14) and a third resistor (R10) which are connected in parallel, and an FB pin of the second level conversion chip (U5) is connected with a connection point of the third resistor (R10) and the fourth resistor (R11).
5. The entrance guard monitoring device based on the internet of things according to claim 3, characterized in that: the main controller is a processor (U3) with the model number of STM8L051F3P 6.
6. The entrance guard monitoring device based on the internet of things according to any one of claims 1 to 5, characterized in that: the human body infrared sensing circuit adopts a human body infrared sensor (U2) with the model number of AM612, a VSS pin of the human body infrared sensor (U2) is grounded, an OEN pin of the human body infrared sensor (U2) is divided into two paths, one path is connected with a VDD pin of the human body infrared sensor (U2), the other path is grounded through a fifth resistor (R2) and a sixth resistor (R3), a SENS pin of the human body infrared sensor (U2) is divided into two paths, one path is connected with a connection point of the fifth resistor (R2) and the sixth resistor (R3), the other path is grounded through a seventh capacitor (C3), the VDD pin of the human body infrared sensor (U2) is connected with a power supply voltage provided by the power supply, a VDD pin of the human body infrared sensor (U2) is divided into two paths, one path is grounded through an eighth capacitor (C1), the other path is grounded through an eighth resistor (R13) and a ninth capacitor (R16) which are connected in parallel after the seventh resistor (R12), an OUT pin of the human body infrared sensor (U2) serves as an output end of the human body infrared sensing circuit and is used for outputting a human body sensing signal to the main control circuit, and a TIME pin of the human body infrared sensor (U2) is connected with a connection point of the seventh resistor (R12) and the eighth resistor (R13).
7. The entrance guard monitoring device based on the internet of things according to any one of claims 1 to 5, characterized in that: the communication module adopts a WiFi module (U1) with the model number of ESP 8266.
8. The entrance guard monitoring device based on the internet of things according to any one of claims 1 to 5, characterized in that: the magnetic induction circuit comprises a matched magnet and a reed switch (K1), the magnet and the reed switch (K1) are respectively installed on a door plate and a door frame of the monitored door, one end of the reed switch (K1) is grounded, the other end of the reed switch (K1) is divided into two paths, one path is connected to a power supply voltage provided by the power supply through a ninth resistor (R5), and the other path is used as the output end of the magnetic induction circuit and used for outputting a door opening and closing state signal to the main control circuit.
9. The entrance guard monitoring device based on the internet of things according to any one of claims 1 to 5, characterized in that: the entrance guard monitoring device further comprises an indicator light circuit, and the indicator light circuit is connected with the main control circuit and used for displaying the working state of the main control circuit.
10. The utility model provides an intelligent entrance guard warning system based on thing networking which characterized in that: the intelligent entrance guard reminding system comprises a cloud server, a mobile terminal and the entrance guard monitoring device based on the internet of things according to any one of claims 1 to 9; and the cloud server receives the human body induction signal and the door opening and closing state signal synchronously sent by the access control monitoring device through the communication module and forwards the human body induction signal and the door opening and closing state signal to the mobile terminal.
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| CN201922035786.1U CN211264373U (en) | 2019-11-22 | 2019-11-22 | Entrance guard monitoring device and intelligent entrance guard reminding system based on Internet of things |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112572501A (en) * | 2020-12-15 | 2021-03-30 | 神华铁路装备有限责任公司 | Railway wagon top cover monitoring device and system and railway wagon |
| CN114137886A (en) * | 2021-12-08 | 2022-03-04 | 杭州涂鸦信息技术有限公司 | Door magnet monitoring circuit, door magnet monitoring device and installation method thereof |
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2019
- 2019-11-22 CN CN201922035786.1U patent/CN211264373U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112572501A (en) * | 2020-12-15 | 2021-03-30 | 神华铁路装备有限责任公司 | Railway wagon top cover monitoring device and system and railway wagon |
| CN114137886A (en) * | 2021-12-08 | 2022-03-04 | 杭州涂鸦信息技术有限公司 | Door magnet monitoring circuit, door magnet monitoring device and installation method thereof |
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