Building sensing detection device
Through the building sensing detection device, millimeter waves are used to detect the existence of human bodies automatically control classroom lighting and door locks, which solves the problem of the lights that are still on in the classroom and achieves energy conservation and emission reduction.
Patent Information
- Application Number
- CN202422077698.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The problem of people leaving the lights in the classroom still turning on leads to waste of electricity and affects carbon emission reduction goals.
It adopts building sensing detection devices, including display screen, MCU motherboard and smart sensor board, equipped with electrical energy metering module, access control module, millimeter wave MCU and temperature and humidity module, detects the presence of human bodies through millimeter wave, automatically controls lighting and door locks, and monitors electricity consumption and temperature and humidity.
It realizes that people in the classroom will automatically turn off the lights after leaving, reduce electricity consumption, monitor electricity consumption and temperature and humidity, and support the carbon emission reduction target.
Smart Images
Figure CN223217795U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sensor detection, in particular to a building sensor detection device. Background Art
[0002] Global climate change has led more and more countries to focus on the impact of greenhouse gases on the climate and to commit to reducing carbon emissions. Energy conservation and emission reduction primarily rely on electricity conservation; saving 1 kWh of electricity can reduce 0.8 kg of carbon dioxide. Campuses are public spaces where schools, faculty, and staff work and live, and lights are often left on after people leave. To reduce the workload of building managers, a building sensor detection device is designed to address the wasteful use of classroom lighting after people leave. Utility Model Content
[0003] In order to solve the problems in the above background technology, the technical solution adopted by the utility model to solve the technical problems is: a building sensing detection device, which includes: a display screen, an MCU main board and an intelligent sensor board. The MCU main board is provided with an energy metering module, an access control module, a millimeter wave MCU, and an intelligent lighting module. The intelligent sensor board is provided with a millimeter wave detection module and a temperature and humidity module. The energy metering module is used to detect electricity usage, the access control module is used to perform authority control on the door locks of the use space, and the millimeter wave detection module is used to detect people and light conditions in the space, adjust the lighting conditions and perform access control.
[0004] As an optimal technical solution of the present invention, the MCU mainboard is also provided with a communication module, and the access control module includes an access control MCU, a relay module, and an access control module, and the access control MCU, relay module, and access control module are all arranged on the MCU mainboard.
[0005] As a preferred technical solution of the present invention, the display screen is respectively connected to the power metering module, the millimeter wave MCU, and the access control MCU through a communication module, and the communication module is an RS-485 communication module.
[0006] As a preferred technical solution of the present invention, the access control MCU is electrically connected to the relay module, the relay module is electrically connected to the access control module, and the access control MCU is connected to the temperature and humidity module through the communication module.
[0007] As a preferred technical solution of the present invention, the millimeter wave MCU is communicatively connected to the millimeter wave detection module, and the communication connection mode between the millimeter wave MCU and the millimeter wave detection module is an I2C communication mode.
[0008] As a preferred technical solution of the present invention, the intelligent lighting module is electrically connected to the display screen, and the electric energy metering module is connected to the communication module via a digital isolation module.
[0009] As a preferred technical solution of the present invention, the electric energy metering module 4 detects the electricity usage including the voltage, current, power factor and carbon emission index.
[0010] As an optimal technical solution of the present invention, the MCU mainboard 2 provides an RS485 communication interface, a sending port D_RS232_TX and a receiving port D_RS232_RX, which can read data from each module, including lighting control, access control, illumination, millimeter wave sensing display, electricity metering display, temperature and humidity, and carbon emission display.
[0011] As an optimal technical solution of the present invention, the electric energy metering module 4 adopts the IM1266 single-phase AC / DC adaptive electric energy metering module, which can accurately measure the AC or DC parameters in the measurement circuit without replacing the module. It can measure voltage, current, power, power factor, and frequency.
[0012] As a preferred technical solution of the present invention, the access control MCU11 adopts the SS888AP18FH chip, and the millimeter wave MCU6 adopts the SS888AP18FH chip.
[0013] The utility model has the following advantages: the utility sensing detection device is equipped with a millimeter wave MCU and a millimeter wave detection module, which can monitor whether there is someone in the classroom, and can turn off the lights if no one is there; it is equipped with an electricity metering module, which can monitor the electricity consumption of each classroom, such as voltage, current, and carbon dioxide emission information; it is equipped with a temperature and humidity module, which can monitor the temperature and humidity of the classroom; it is equipped with an access control module, which can realize the function of closing the door when someone leaves. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the sensor detection device system of the preferred embodiment of the utility model;
[0015] Figure 2 This is a schematic diagram of the operating principle of the electric energy metering module of the preferred embodiment of the utility model;
[0016] Figure 3 This is a schematic diagram of the electric energy metering module of the preferred embodiment of the utility model;
[0017] Figure 4 This is a schematic diagram of the RS-485 communication circuit of a preferred embodiment of the present utility model;
[0018] Figure 5 This is a design block diagram of the access control MCU module of the preferred embodiment of the utility model;
[0019] Figure 6 This is the access control MCU software workflow of the preferred embodiment of the utility model;
[0020] Figure 7 This is a schematic diagram of the access control MCU of the preferred embodiment of the utility model;
[0021] Figure 8 This is a schematic diagram of the access control RS-485 communication circuit of the preferred embodiment of the utility model;
[0022] Figure 9 This is a schematic diagram of the relay control principle of the preferred embodiment of the utility model;
[0023] Figure 10 This is a schematic diagram of the access control principle of the preferred embodiment of the utility model;
[0024] Figure 11 This is a block diagram of the millimeter wave MCU design of the preferred embodiment of the utility model;
[0025] Figure 12 This is the millimeter wave MCU software workflow of the preferred embodiment of the utility model;
[0026] Figure 13 This is a schematic diagram of the MCU2 circuit of a preferred embodiment of the present utility model;
[0027] Figure 14 This is a schematic diagram of a millimeter wave RS-485 communication circuit of a preferred embodiment of the present utility model;
[0028] Figure 15 This is a schematic diagram of the millimeter wave and temperature and humidity circuit of the preferred embodiment of the utility model;
[0029] Figure 16 It is a schematic diagram of the display screen interactive panel interface diagram of the preferred embodiment of the present utility model.
[0030] Explanation of the accompanying symbols: 1. Display screen; 2. MCU main board; 3. Smart sensor board; 4. Electric energy metering module; 5. Access control module; 6. Millimeter wave MCU; 7. Smart lighting module; 8. Millimeter wave detection module; 9. Temperature and humidity module; 10. Communication module; 11. Access control MCU; 12. Relay module; 13. Access control module. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0032] Please refer to Figures 1-16The utility model provides a building sensing detection device, comprising: a display screen 1, an MCU mainboard 2 and an intelligent sensor board 3. The MCU mainboard 2 is provided with an energy metering module 4, an access control module 5, a millimeter wave MCU 6, and an intelligent lighting module 7. The intelligent sensor board 3 is provided with a millimeter wave detection module 8 and a temperature and humidity module 9. The energy metering module 4 is used to detect electricity usage, the access control module 5 is used to control the authority of the door locks in the use space, and the millimeter wave detection module 8 is used to detect the personnel and light intensity in the space, adjust the lighting conditions and perform access control.
[0033] Combine Figure 5-10 The access control MCU control circuit shown in the figure, wherein the MCU main board 2 is also provided with a communication module 10, and the access control module 5 includes an access control MCU11, a relay module 12, and an access control module 13. The access control MCU11, the relay module 12, and the access control module 13 are all arranged on the MCU main board 2. The MCU1 module adopts the SS888AP18FH chip produced by Shengsheng Microelectronics Co., Ltd. It is a microcontroller with high integration, which can save space, reduce power consumption, and enhance battery life.
[0034] The MCU communicates with the temperature and humidity module 9 via the I2C protocol. It uses an industrial-grade, high-precision temperature and humidity chip (SHT30) for excellent reliability, high accuracy, and interchangeability. The temperature range is -40-125°C, and the humidity range is 0-100%. The MCU's P02 port is connected to the SHT30's clock signal line (I2C1_CLK), and the P14 port is connected to the SHT30's data signal line (I2C1_SDA) for reading temperature and humidity.
[0035] P10, P20, and P21 of the MCU are connected to DE, RO, and DI of the RS-485 communication module 10 circuit, respectively. DE enables the RS-485 communication circuit, and data is sent and received through RO and DI. After being processed by the BL3085 chip, it is output through ports A and B and sent to display screen 1 for display.
[0036] The P00 of the MCU is connected to the input pin of the relay (GPIO0_PUSH_485), which controls the opening and closing of the relay module 12, thereby controlling the door lock switch button to achieve control of the door. In addition to automatic control, it can also be manually controlled.
[0037] Combine Figure 2-Figure 4 As shown, the electric energy metering circuit design is mainly composed of an electric energy metering module, a digital isolation module and an RS-485 communication module. The electric energy metering module 4 is connected to the communication module 10 through the digital isolation module.
[0038] The electric energy metering module uses the IM1266 single-phase AC / DC adaptive electric energy metering module produced by Shenzhen Airuida Optoelectronics Co., Ltd. This module can accurately measure the AC or DC parameters in the measurement circuit without replacing the module. The accuracy is better than the national Class 1 standard; it can measure electrical data such as voltage, current, power, power factor, and frequency.
[0039] Connect the live wire of the circuit to be measured to the I-IN terminal of the energy metering circuit, and the neutral wire to the N terminal. Connect the live wire of the load to the I-OUT terminal of the energy metering circuit, and the neutral wire of the load to the N terminal of the energy metering circuit. This is equivalent to connecting the energy metering circuit in series for testing. The data is then transmitted to the digital isolation circuit for processing via the RS-485 interface (RX and TX).
[0040] The digital isolation circuit uses the Rongpai π121U31 digital isolation chip to meet safety regulations and reduce ground loop noise, and then transmits the data to the RS-485 communication circuit.
[0041] The RS-485 communication circuit utilizes the BL3085 chip, designed and manufactured by Belling, a low-power transceiver for RS-485 communication. This chip includes fail-safe circuitry that ensures the receiver output remains at a logic-high level even when the receiver input is open or shorted. Furthermore, the BL3085 chip features a slew-rate-limited driver to minimize electromagnetic interference (EMI) and reflections caused by improperly terminated cables, enabling error-free data transmission at up to 250kbps. The POWER_485A and POWER_485B connect to the intelligent interactive terminals D_RS232_TX and D_RS232_RX, respectively, to enable automated data acquisition and monitoring.
[0042] Combine Figure 11-Figure 15 As shown, the access control MCU11 is electrically connected to the relay module 12, the relay module 12 is electrically connected to the access control module 13, the access control MCU11 is connected to the temperature and humidity module 9 through the communication module 10, the millimeter wave MCU6 is communicatively connected to the millimeter wave detection module 8, and the communication connection method between the millimeter wave MCU6 and the millimeter wave detection module 8 is the I2C communication method.
[0043] The MCU2 module uses the SS888AP18FH chip produced by Shengsheng Microelectronics. It is a microcontroller with high integration, which can save space, reduce power consumption and enhance battery life.
[0044] MCU2's P20 and P21 ports are connected to the millimeter-wave data receiver (RX and TX), respectively. The MCU reads the millimeter-wave information and processes it to control access control and lighting status. The millimeter-wave module uses the MR5G21 produced by Leapmmw. This module implements human presence detection. It transmits 5.8GHz FMCW and CW radio waves into the detection area and receives radio waves reflected by all moving and slightly moving targets within the area. The module's microwave circuit converts these signals into difference-frequency electrical signals. Based on the linear frequency modulation continuous wave target modulation principle, a high-performance digital signal recognition algorithm is used to analyze whether there are micro-moving and moving targets in the area. When a person is standing, squatting, or sitting still, breathing causes subtle movements in the chest and other parts of the body. The MR5G21 can reliably detect these subtle movements with extremely high sensitivity, thus determining the presence of people in the area. The millimeter-wave module must be installed facing downward. To ensure accurate detection, the temperature and humidity module are integrated with the millimeter-wave module on a small board to form a smart sensor.
[0045] MCU2's P13, P01, and P12 are connected to the DE, RO, and DI terminals of the RS-485 communication circuit, respectively. DE enables the RS-485 communication circuit, and data is sent and received via RO and DI terminals. After processing by the BL3085 chip, data is output through ports A and B and sent to the intelligent terminal interaction module for display.
[0046] Among them, the intelligent lighting module 7 is electrically connected to the display screen 1, and the display screen 1 is connected to the power metering module 4, the millimeter wave MCU6, and the access control MCU11 through the communication module 10. The communication module 10 is an RS-485 communication module, and the display screen 1 can realize the data exchange of the sensors, and display the data of the millimeter wave detection module 8, the temperature and humidity detection module 9, the power metering module 4 and the access control module 5, which is convenient for human-computer interaction.
[0047] Combine Figure 16 As shown in the figure, the intelligent terminal interactive circuit uses a display screen (model: RTThread GUI Display Screen Module 4.3) developed by Shanghai Ruisaide Electronic Technology Co., Ltd. based on the Persimmon UI. It is used to provide screen development solutions for IoT, smart home, consumer electronics, and other fields. It provides an RS485 communication interface with a transmit port D_RS232_TX and a receive port D_RS232_RX, which can read data from various modules, such as lighting control, access control, illumination, millimeter wave sensing display, energy metering display, temperature and humidity, and carbon emissions display.
[0048] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A building sensing detection device, characterized in that: include: A display screen (1), an MCU mainboard (2) and an intelligent sensor board (3), wherein the MCU mainboard (2) is provided with an electric energy metering module (4), an access control module (5), a millimeter wave MCU (6) and an intelligent lighting module (7), and the intelligent sensor board (3) is provided with a millimeter wave detection module (8) and a temperature and humidity module (9), wherein the electric energy metering module (4) is used to detect the power consumption, the access control module (5) is used to control the authority of the door lock of the use space, and the millimeter wave detection module (8) is used to detect the personnel and light intensity in the space, adjust the lighting condition and perform access control, and the MCU mainboard (2) is also ... A communication module (10) is provided, and the access control module (5) includes an access control MCU (11), a relay module (12), and an access control module (13). The access control MCU (11), the relay module (12), and the access control module (13) are all provided on an MCU mainboard (2). The access control MCU (11) adopts an SS888AP18FH chip, and the millimeter wave MCU (6) adopts an SS888AP18FH chip. The millimeter wave MCU (6) is communicatively connected to a millimeter wave detection module (8), and the communication connection mode between the millimeter wave MCU (6) and the millimeter wave detection module (8) is an I2C communication mode.
2. A building sensing detection device according to claim 1, characterized in that: The display screen (1) is respectively connected to the electric energy metering module (4), the millimeter wave MCU (6), and the access control MCU (11) via a communication module (10), and the communication module (10) is an RS-485 communication module.
3. A building sensing detection device according to claim 2, characterized in that: The access control MCU (11) is electrically connected to the relay module (12), the relay module (12) is electrically connected to the access control module (13), and the access control MCU (11) is connected to the temperature and humidity module (9) via the communication module (10).
4. A building sensing detection device according to claim 1, characterized in that: The intelligent lighting module (7) is electrically connected to the display screen (1), and the electric energy metering module (4) is connected to the communication module (10) via a digital isolation module.
5. A building sensing detection device according to claim 1, characterized in that: The electric energy metering module (4) detects the electricity usage including voltage, current, power factor and carbon emission index.
6. A building sensing detection device according to claim 1, characterized in that: The MCU mainboard (2) provides an RS485 communication interface, a sending port D_RS232_TX and a receiving port D_RS232_RX, which can read data from various modules, including lighting control, access control, illumination, millimeter wave sensing display, power metering display, temperature and humidity, and carbon emission display.
7. A building sensing detection device according to claim 1, characterized in that: The electric energy metering module (4) adopts the IM1266 single-phase AC / DC adaptive electric energy metering module, which can accurately measure the AC or DC parameters in the measurement circuit without replacing the module, and can measure voltage, current, power, power factor, and frequency.