CN111556088A - Multipurpose emergency rescue Internet of things device - Google Patents
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Abstract
The invention provides a multipurpose emergency rescue Internet of things device, which comprises: the system comprises an embedded industrial control mainboard module, a digital audio power amplification module electrically connected with the embedded industrial control mainboard module, a sensor module for collecting various environmental information data around a dangerous source, a power supply control module with 220V alternating current and 12V direct current power supply interfaces and an environmental temperature control module; further comprising: the system comprises a one-key alarm button module, a door magnetic module, an RFID card reader module, an audio processing module, a mainboard fan module, a starlight alarm module, a video processing module, a camera and wired and wireless communication modules, wherein the one-key alarm button module, the door magnetic module, the RFID card reader module, the audio processing module, the mainboard fan module, the starlight alarm module, the video processing module, the camera and the wired. The multipurpose emergency rescue Internet of things device provided by the invention integrates the hazard source and the environment detection and emergency rescue function module, is high in communication speed and comprehensive in detection data, and solves the problem of high construction cost caused by a plurality of separated data detection devices.
Description
Technical Field
The invention relates to the technical field of emergency rescue, in particular to a multipurpose emergency rescue Internet of things device.
Background
At present, people face disasters which can occur in the natural or industrial production process all the time in life, so emergency rescue is very important, the information communication of the emergency rescue is very critical, and the emergency rescue process is divided into: normalized and non-normalized.
The traditional communication of emergency rescue information is generally given by a superior, then is transmitted to a district or village committee layer by layer, and then is notified to the basic level masses through effective broadcasting or manual gong-tapping, the process time is long, and the loss is often enlarged because the communication cannot be timely transmitted;
the traditional hazard source, the peripheral environment detection and the emergency rescue system are independent and separated, so that the problems that the degree of mutual correlation of the systems is not high, a plurality of sets of systems need to be deployed in the same occasion, the information of a plurality of sets of lines is mutually isolated, the cost is high, the construction is complex and the like exist.
Traditional emergency broadcasting generally surrounds a cell or village, and if the emergency broadcasting is to be deployed in remote environments such as mountains, rivers, reservoirs, mines, forest parks and the like, the positions are generally in remote positions, the cost of system power supply and data communication line deployment is very high, the maintenance is difficult, the reliability is low, and the occasions are just dangerous places.
Therefore, the traditional emergency rescue communication is far from reaching the purpose of being fast and timely, the problems that the detection data are mutually independent, the integration difficulty is high, and the construction cost of the detection equipment is high exist, and the traditional emergency rescue is greatly difficult to realize.
Therefore, it is desirable to provide a multipurpose emergency rescue internet of things device to solve the above technical problems.
Disclosure of Invention
The invention mainly solves the technical problem of providing a multipurpose emergency rescue Internet of things device, integrates a hazard source and an environment detection and emergency rescue function module, has high communication speed and comprehensive detection data, and solves the problem of high construction cost caused by a plurality of separated data detection devices.
In order to solve the technical problems, one technical scheme adopted by the invention is to provide a multipurpose emergency rescue internet of things device, which comprises: the system comprises an embedded industrial control mainboard module 1, a digital audio power amplification module 2 electrically connected with the embedded industrial control mainboard module 1, a sensor module 3 used for collecting various environmental information data around a dangerous source, a power supply control module 4 with 220V alternating current and 12V direct current power supply interfaces and an environmental temperature control module 5;
further comprising: the system comprises a one-key alarm button module 6, a door magnet module 7, an RFID card reader module 8, an audio processing module 9, a mainboard fan module 10, a starlight alarm module 11, a video processing module 12, a camera 13 for performing video analysis on a set environment and a wired and wireless communication module 14 for uploading information instructions of a local ID state information receiving service platform center in real time, wherein the one-key alarm button module 6, the door magnet module 7, the RFID card reader module 8, the audio processing module 9, the mainboard fan module 10, the starlight alarm module 11 and the video.
In an embodiment, preferably, the embedded industrial control motherboard module 1 includes an ARM Cortex-a7 processor 101, a switch/display lamp 102 electrically connected to the ARM Cortex-a7 processor 101, a watchdog 103, a power manager 104, a dual-channel DDR3 memory 105, an EMMC memory 106, a TF card memory 107, a USB communication unit 108, an I2C communication unit 109, a UART communication unit 110, a GPIO interface unit 111, and an IR processing unit 112 for receiving infrared signals;
the UART communication unit 110 is electrically connected with the sensor module 3 and the ambient temperature control module 5 through a UART interface;
the watchdog 103 is used for receiving a plurality of pulse trains periodically sent by the ARM Cortex-A7 processor 101, resetting the timer after detecting the plurality of pulse trains, and when the plurality of pulse trains are not received within the preset time length of the timer, the watchdog 103 sends out a high-low level to reset the ARM Cortex-A7 processor 101;
the ARM Cortex-A7 processor 101 is connected with the wired and wireless communication module 14, the USB communication unit 108, the video processing module 12, the audio processing module 9 and the IR processing unit 112 through SPI interfaces;
the ARM Cortex-A7 processor 101 is connected with the I2C communication unit 109 through an I2C interface;
the ARM Cortex-A7 processor 101 is connected with the digital audio power amplification module 2, the power supply control module 4, the environmental temperature control module 5, the one-key alarm button module 6, the door magnet module 7, the mainboard fan module 10 and the starlight alarm module 11 through the GPIO interface unit 111.
In an embodiment, the ARM Cortex-A7 processor 101 is preferably a 32-bit RISC architecture processor;
the memory of the dual channel DDR3 memory 105 is 8G and the memory of the EMMC memory 106 is 16G.
In an embodiment, preferably, the AUDIO processing module 9 is provided with an AUDIO input interface, an AUDIO output interface, and a speaker interface for connecting the built-in speaker 16 and/or the digital AUDIO power amplifying module 2;
the video processing module 12 is provided with an HDMI interface, an LVDS interface, an MIPI interface, and a VID interface connected to the camera 13, wherein the LVDS interface and the MIPI interface are connected to an LED display/LCD display 15.
In an embodiment, the wired and wireless communication module 14 preferably includes a 40MHz communication unit 141, a 4G/5G/GPS communication unit 142, a WLAN communication unit 143, and a 100M ethernet communication unit 144.
In an embodiment, preferably, the sensor module 3 includes a pressure sensor 31, a temperature and humidity sensor 32, a wind speed sensor 33, a water level sensor 34, a flame sensor 35, and a gas sensor 36, and the power control module 4 supplies power to the sensors included in the sensor module 3;
the pressure sensor 31, the temperature and humidity sensor 32, the wind speed sensor 33, the water level sensor 34, the flame sensor 35 and the gas sensor 36 are electrically connected in sequence;
the sensors included in the sensor module 3 communicate with the ARM Cortex-a7 processor 101 through RS485 interfaces, respectively.
In the embodiment, preferably, the power control module 4 includes an AC power automatic protection unit 41, an AC-to-DC power supply unit 42, a power switching unit 43, an AC power control unit 44, and an audio detection control unit 45;
the AC power supply automatic protection unit 41 is provided with an AC 220V voltage input terminal, is electrically connected with the AC-to-DC power supply unit 42 and the AC power supply control unit 44, is used for carrying out surge absorption, overvoltage and undervoltage detection on input voltage, if the input voltage exceeds 230V or is lower than 200V, the system is powered off and protected, and automatically switches on to recover power supply twenty seconds after danger is relieved, and is used for carrying out short circuit, electric leakage, overcurrent and overload detection on an output line;
the AC-DC power supply unit 42 is connected with the power supply switching unit 43 and the AC power supply control unit 44 and is used for converting the alternating current input voltage into +12 direct current voltage;
the power supply switching unit 43 is connected with a direct current 12V voltage input terminal, and the power supply output end of the power supply control module 4 is electrically connected with the embedded industrial control main board module 1, the digital audio power amplification module 2, the environment temperature control module 5, the door magnet module 7, the RFID card reader module 8, the starlight alarm module 11, the camera 13 and the LED display/LCD display;
the audio detection control unit 45 is connected to the speaker interface, and is configured to start the digital audio power amplification module 2 when detecting an audio signal, and otherwise, control the digital audio power amplification module 2 to power off after delaying for a predetermined time length.
In an embodiment, preferably, the ambient temperature control module 5 includes an ambient temperature detection unit 51 and a chassis cooling fan 52, and the ambient temperature detection unit 51 is connected to the GPIO interface unit 111 and the power control module 4;
when the ambient temperature detection unit 51 detects that the ambient temperature is lower than 30 ℃, the embedded industrial control mainboard module 1 controls the chassis cooling fan 52 to stop working;
when the ambient temperature detection unit 51 detects that the ambient temperature is greater than or equal to 30 degrees and less than or equal to 40 degrees, the embedded industrial control mainboard module 1 controls the chassis cooling fan 52 to work at a low speed;
when the ambient temperature detecting unit 51 detects that the ambient temperature is greater than or equal to 30 degrees and greater than 40 degrees, the embedded industrial control motherboard module 1 controls the chassis cooling fan 52 to operate at full speed.
In an embodiment, preferably, the digital audio power amplification module 2 includes an audio preamplifier 21, a high-power audio power amplifier 22, an LCR filter 23, a speaker protection unit 24, a voltage conversion unit 25 for converting alternating current into a BOV/+ -15V voltage, a temperature control unit 26, and a power amplifier cooling fan 27;
the AUDIO preamplifier 21 is connected with an AUDIO interface, a high-power AUDIO power amplifier 22 and a voltage conversion unit 25;
the high-power audio power amplifier 22 is connected with the LCR filter 23 and the voltage conversion unit 25;
the horn protection unit 24 is connected with the LCR filter 23, the loudspeaker and the GPIO interface unit 111;
the temperature control unit 26 is connected with the voltage conversion unit 25 and the power amplifier cooling fan 27;
the voltage conversion unit 25 is connected with the ARM Cortex-A7 processor 101 through a GPIO interface and is connected with the power supply control module 4.
In an embodiment, the wired and wireless communication module 14 preferably communicates with the service platform center using TCP/IP protocol communication.
The invention has the beneficial effects that:
(1) wired and wireless network access is supported, and communication with a service platform center is facilitated;
(2) the alternating current and direct current power supply modes are supported, and the user can select the power supply mode;
(3) the intelligent control of temperature can be realized, and the environmental adaptability is strong.
(4) The sensor module comprises various sensors, can collect various target environment data, can be selected by a user according to the environment, has comprehensive functions, and solves the problem of high construction cost caused by a plurality of separated data detection devices.
Drawings
Fig. 1 is a block diagram of a first preferred embodiment of a multipurpose emergency rescue internet of things device according to the invention;
fig. 2 is a block diagram of a first preferred embodiment of the embedded industrial control main board module 1 in fig. 1;
FIG. 3 is a block diagram of a first preferred embodiment of the sensor module 3 of FIG. 1;
FIG. 4 is a block diagram of a first preferred embodiment of the power control module 4 of FIG. 1;
FIG. 5 is a block diagram of a first preferred embodiment of the ambient temperature control module 5 of FIG. 1;
fig. 6 is a block diagram of the first preferred embodiment of the digital audio power amplifying module 2 of fig. 1.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the drawings.
Referring to fig. 1, in the multipurpose emergency rescue internet of things device of the embodiment,
the method comprises the following steps: the system comprises an embedded industrial control mainboard module 1, a digital audio power amplification module 2 electrically connected with the embedded industrial control mainboard module 1, a sensor module 3 used for collecting various environmental information data around a dangerous source, a power supply control module 4 with 220V alternating current and 12V direct current power supply interfaces and an environmental temperature control module 5;
further comprising: the system comprises a one-key alarm button module 6, a door magnet module 7, an RFID card reader module 8, an audio processing module 9, a mainboard fan module 10, a starlight alarm module 11, a video processing module 12, a camera 13 for performing video analysis on a set environment and a wired and wireless communication module 14 for uploading information instructions of a local ID state information receiving service platform center in real time, wherein the one-key alarm button module 6, the door magnet module 7, the RFID card reader module 8, the audio processing module 9, the mainboard fan module 10, the starlight alarm module 11 and the video.
The multipurpose emergency rescue Internet of things device can access the working data of the monitored object, and the working state of the monitored object is detected. For example, environmental information data around the hazard source object, such as atmospheric pressure, air temperature and humidity, various gas concentrations, water level height, wind speed, etc., may be acquired by the sensor module 3, and video analysis may be performed on a set environment, such as object displacement, quantity change, flame generation, etc., by the built-in camera 13.
The multipurpose emergency rescue internet of things device of the embodiment is provided with a one-key help seeking button, and the multifunctional emergency rescue internet of things device can be communicated with a service platform center to timely obtain assistance when the button is pressed. For example, the device can receive video, audio, characters, pictures and other formats sent by the service platform center, and can transmit emergency rescue signals to the masses according to the mode of actually selecting single video display, single audio and video.
Referring to fig. 1, for the wired and wireless communication module 14, in an example, the wireless module may select a chinese telecom/china unicom/chinese mobile full band wireless 2G/3G/4G/5G, a wired network communication or a standby 30MHz short wave band communication. Multiple communication modes can be selected, so that the multipurpose emergency rescue Internet of things device has stronger environment adaptation capability, and can ensure the instant communication with a service platform center.
The multipurpose emergency rescue Internet of things device has two power supply modes of 220V alternating current and 12V direct current. In the DC12V power supply mode, independent power supply such as solar energy, wind energy and the like can be directly used outdoors without conversion.
The multipurpose emergency rescue Internet of things device is communicated with the service platform center, can select wired or wireless communication, uploads local ID state information in real time, receives an information instruction issued by the service platform center, and realizes real-time communication and function control of the device.
The multipurpose emergency rescue Internet of things device adopts the embedded industrial control mainboard, and each connecting device can compile an independent bottom layer driving file for the mainboard to call.
As for the specific structure of the embedded industrial control main board module 1, as shown in fig. 2, preferably, the embedded industrial control main board module 1 includes an ARM Cortex-a7 processor 101, and a switch/display lamp 102, a watchdog 103, a power manager 104, a dual-channel DDR3 memory 105, an EMMC memory 106, a TF card memory 107, a USB communication unit 108, an I2C communication unit 109, a UART communication unit 110, a GPIO interface unit 111, and an IR processing unit 112 for receiving infrared signals, which are electrically connected to the ARM Cortex-a7 processor 101;
the UART communication unit 110 is electrically connected with the sensor module 3 and the ambient temperature control module 5 through a UART interface;
the watchdog 103 is configured to receive a plurality of bursts periodically transmitted by the ARM Cortex-a7 processor 101, and reset the timer after detecting the plurality of bursts, and when the plurality of bursts are not received within a predetermined time length of the timer, the watchdog 103 sends a high/low level to reset the ARM Cortex-a7 processor 101, so as to ensure that the apparatus operates normally again.
Please further refer to fig. 2:
the ARM Cortex-A7 processor 101 is connected with the wired and wireless communication module 14, the USB communication unit 108, the video processing module 12, the audio processing module 9 and the IR processing unit 112 through SPI interfaces;
the ARM Cortex-A7 processor 101 is connected with the I2C communication unit 109 through an I2C interface;
the ARM Cortex-A7 processor 101 is connected with the digital audio power amplification module 2, the power supply control module 4, the environmental temperature control module 5, the one-key alarm button module 6, the door magnet module 7, the mainboard fan module 10 and the starlight alarm module 11 through the GPIO interface unit 111;
in this embodiment, the USB communication unit 108 communicates with the ARM Cortex-a7 processor 101 through the SPI interface, and may be connected to a standard USB device;
the I2C communication unit 109, which communicates with the ARM Cortex-a7 processor 101 through an I2C interface, mainly performs interface level matching here, and can connect with standard I2C bus equipment;
the video processing module 12 is communicated with the ARM Cortex-A7 processor 101 through an SPI interface, the video processing is divided into two parts, namely video output and video input, the video output part is mainly used for processing video signals transmitted by the ARM Cortex-A7 processor 101, converting the video signals into format video streams of HDMI, MIPI, LVDS and the like, and matching displays with different input formats; the input part mainly processes an external camera video signal, converts the external camera video signal into a data stream and sends the data stream to the ARM Cortex-A7 processor 101 for processing; the functions of behavior tracking, article identification, face analysis and the like are realized;
the audio processing module 9 is communicated with the ARM Cortex-A7 processor 101 through an SPI interface, the audio processing is divided into an audio output part and an audio input part, the audio output part is mainly used for processing digital audio signals transmitted by the ARM Cortex-A7 processor 101, and the digital audio signals are converted into analog signals through a DAC and then are output after filtering and amplification; the input part mainly processes the input signal of the external microphone, filters and amplifies the input signal, converts the input signal into a digital signal by an ADC (analog to digital converter), and transmits the digital signal to the ARM Cortex-A7 processor 101 for processing;
in the embodiment of the invention, an ARM Cortex-A7 processor 101 controls a one-key alarm button module 6, a starlight alarm module 11, a door magnet module 7, a power supply control module 4, a digital audio power amplification module 2 and an ambient temperature control module 5 through a GPIO interface;
a motherboard fan module 10 for dissipating heat from the motherboard;
in the embodiment of the present invention, the functional description of the GPIO interface unit 111: the system is communicated with an ARMCortex-A7 processor 101 through a GPIO interface, and the GPIO interface has two use states; firstly, inputting a state, wherein: 1. inputting in a floating mode; 2. pull-up input; 3. pull-down input; 4. simulating input; second, output state, in which can set: 1. push-pull output; 2. open-drain output; 3. multiplexing push-pull output; 4. multiplexing open-drain output; the GPIO interface can control the one-key alarm button module 6, the starlight alarm module 11, the door magnet module 7, the power control module 4, the digital audio power amplification module 2 and the ambient temperature control module 5.
Further, in embodiments of the present invention, the ARM Cortex-A7 processor 101 is preferably a 32-bit RISC architected processor, preferably embedded with a custom version of the Linux operating system; the memory of the dual-channel DDR3 memory 105 is 8G, the memory of the EMMC memory 106 is 16G, and in addition, the storage capacity can be expanded through the USB communication unit 108.
In the embodiment of the present invention, preferably, the AUDIO processing module 9 is provided with an AUDIO input interface, an AUDIO output interface, and a speaker interface for connecting the internal speaker 16 and/or the digital AUDIO power amplifying module 2, so that an internal speaker or an external speaker device can be provided;
the video processing module 12 is provided with an HDMI interface, an LVDS interface, an MIPI interface, and a VID interface connected to the camera 13, wherein the LVDS interface and the MIPI interface are connected to an LED display/LCD display 15.
In the embodiment of the present invention, preferably, the wired and wireless communication module 14 includes a 40MHz communication unit 141, a 4G/5G/GPS communication unit 142, a WLAN communication unit 143, and a 100M ethernet communication unit 144;
in this embodiment, the 40MHz communication unit 141 communicates with the ARM Cortex-a7 processor 101 through the SPI interface, and performs data communication with the service platform center using a 40MHz wireless short-wave frequency band, where the communication distance can reach 1000KM, the rate can reach as high as 24000bps, and the communication unit can be used in remote mountainous areas or when a mobile communication base station fails;
in the embodiment, the 4G/5G/GPS communication unit 142 communicates with the ARM Cortex-a7 processor 101 through an SPI interface, performs data communication with a service platform center using a mobile base station wireless frequency band, can use telecommunication, communication and mobile signals, and is used under a base station coverage condition, with a rate up to 1G bps;
in this embodiment, the WLAN communication unit 143 communicates with the ARM Cortex-a7 processor 101 through the SPI interface, performs data communication with the service platform center using the wireless lan, and can use telecommunication, communication, and mobile signals, and when used under the coverage of the base station, the rate can reach up to 1G bps;
in this embodiment, the 100M ethernet communication unit 144 communicates with the ARM Cortex-a7 processor 101 through the SPI interface, uses the wired lan to communicate data with the platform, can use telecommunication, internet, mobile 4G/5G signals, and is used under the base station coverage condition with a rate up to 1G bps.
As shown in fig. 3, in the embodiment of the present invention, for the specific circuit structure of the sensor module 3, it is preferable that the sensor module 3 includes a pressure sensor 31, a temperature and humidity sensor 32, a wind speed sensor 33, a water level sensor 34, a flame sensor 35, and a gas sensor 36, and the power control module 4 supplies power to the sensors included in the sensor module 3;
the pressure sensor 31, the temperature and humidity sensor 32, the wind speed sensor 33, the water level sensor 34, the flame sensor 35 and the gas sensor 36 are electrically connected in sequence;
the sensors included in the sensor module 3 are respectively communicated with the ARM Cortex-A7 processor 101 through RS485 interfaces;
in the embodiment, the plurality of sensors adopt an RS485 daisy chain type communication structure, so that the installation and the use are convenient;
for the pressure sensor 31, the object pressure generates analog voltage through a pressure sensing device, the analog voltage is converted into a digital signal through high-precision 24-bit AD conversion, and the digital signal is communicated with the mainboard through an RS485 interface; detecting atmospheric pressure, tank body pressure, tire pressure and the like;
for the temperature and humidity sensor 32, the temperature and humidity are detected, and the temperature and humidity are converted into digital signals after high-precision AD conversion, and the digital signals are communicated with the mainboard through an RS485 interface;
for the wind speed sensor 33, after wind passes through the detector, a pulse signal is generated, the frequency of the pulse signal is in direct proportion to the wind speed, the pulse signal is converted into the wind speed, and the wind speed sensor is communicated with the mainboard through an RS485 interface;
for the gas sensor 36, the gas sensor has many kinds, such as carbon monoxide, carbon dioxide, methane, methanol, etc., and different gas detection devices can be selected according to actual needs to quantify the gas concentration into digital signals, and the digital signals are communicated with the mainboard through the UART communication unit 110, preferably through an RS485 interface;
for the flame sensor 35, whether the flame catches fire is judged by the shape and color of the flame, and data are communicated with the main board through an RS485 interface;
for the water level sensor 34, the water level height is calculated through the voltage difference between the water levels, the water level sensor is communicated with the main board through the RS485 interface, the water level sensor can be used for detecting the water level of a reservoir and a river, and the rainfall of the area can also be calculated through the water level height collected by rainwater.
As shown in fig. 4, in the embodiment of the present invention, preferably, the power control module 4 includes an AC power automatic protection unit 41, an AC-to-DC power supply unit 42, a power switching unit 43, an AC power control unit 44, and an audio detection control unit 45;
the AC power supply automatic protection unit 41 is provided with an AC 220V voltage input terminal, is electrically connected with the AC-to-DC power supply unit 42 and the AC power supply control unit 44, is used for carrying out surge absorption, overvoltage and undervoltage detection on input voltage, if the input voltage exceeds 230V or is lower than 200V, the system is subjected to power-off protection, automatic closing is carried out after twenty seconds of danger relief to recover power supply, short circuit, electric leakage, overcurrent and overload detection are carried out on an output line, if a problem exists, the system is subjected to power-off protection, automatic closing is carried out after twenty seconds of danger relief to recover power supply, and the AC power supply automatic protection unit is used for providing trip times statistics and;
the AC-DC power supply unit 42 is connected with the power supply switching unit 43 and the AC power supply control unit 44 and is used for converting the alternating current input voltage into +12 direct current voltage;
the power supply switching unit 43 is connected with a direct current 12V voltage input terminal, and the power supply output end of the power supply control module 4 is electrically connected with the embedded industrial control main board module 1, the digital audio power amplification module 2, the environment temperature control module 5, the door magnet module 7, the RFID card reader module 8, the starlight alarm module 11, the camera 13 and the LED display/LCD display;
the audio detection control unit 45 is connected with the loudspeaker interface and used for starting the digital audio power amplification module 2 when detecting an audio signal, otherwise, after delaying for a preset time length, controlling the digital audio power amplification module 2 to be powered off so as to achieve the purpose of saving electricity, and when the audio signal is triggered in the delay process, the audio detection control unit 45 calculates according to 80 seconds again;
the digital audio power amplification module 2 of the device consumes most power, the standby power also has static power consumption of dozens of watts, and in order to reduce the power consumption, the digital audio power amplification module 2 is controlled by the audio detection control unit 45 to be started and automatically powered off, so that the energy-saving purpose is achieved;
in the embodiment of the invention, the switching between the direct current and the alternating current voltage power supply is realized by using the power supply switching unit 43, wherein the direct current 12V power supply mode is used for a backup power supply occasion, the backup power supply can be directly used by a system without an inverter, the loss is reduced, and the cost is reduced;
in the embodiment of the invention, the starlight alarm module 11 is utilized, when the device is destroyed by violence, the starlight alarm is automatically sent out, the alarm can be triggered by the center of the service platform, and the sound pressure reaches 100 decibels;
in the embodiment of the invention, the camera 13 on the device is mainly used for monitoring the surrounding environment of the device and recording the face shooting of the personnel who open the device or press the emergency button, and the door magnet module 7 is used for detecting the opening state of the device door;
and the RFID card reader module 8 is used for verifying the ID of the starting equipment of the maintenance and overhaul personnel.
In the embodiment of the present invention, as shown in fig. 5, preferably, the ambient temperature control module 5 includes an ambient temperature detection unit 51 and a chassis heat dissipation fan 52, where the ambient temperature detection unit 51 is connected to the GPIO interface unit 111 and the power control module 4;
when the ambient temperature detection unit 51 detects that the ambient temperature is lower than 30 ℃, the embedded industrial control mainboard module 1 controls the chassis cooling fan 52 to stop working;
when the ambient temperature detection unit 51 detects that the ambient temperature is greater than or equal to 30 degrees and less than or equal to 40 degrees, the embedded industrial control mainboard module 1 controls the chassis cooling fan 52 to work at a low speed;
when the ambient temperature detecting unit 51 detects that the ambient temperature is greater than or equal to 30 degrees and greater than 40 degrees, the embedded industrial control motherboard module 1 controls the chassis cooling fan 52 to operate at full speed.
In the embodiment of the present invention, preferably, as shown in fig. 6, the digital audio power amplifying module 2 includes an audio preamplifier 21, a high-power audio power amplifier 22, an LCR filter 23, a horn protection unit 24, a voltage conversion unit 25 for converting an alternating current into a BOV/+ -15V voltage, a temperature control unit 26, and a power amplifier cooling fan 27;
the AUDIO preamplifier 21 is connected with an AUDIO interface, a high-power AUDIO power amplifier 22 and a voltage conversion unit 25;
the high-power audio power amplifier 22 is connected with the LCR filter 23 and the voltage conversion unit 25;
the horn protection unit 24 is connected with the LCR filter 23, the loudspeaker and the GPIO interface unit 111;
the temperature control unit 26 is connected with the voltage conversion unit 25 and the power amplifier cooling fan 27, and the power amplifier cooling fan 27 is used for cooling the high-power audio power amplifier 22;
the voltage conversion unit 25 is connected with the ARM Cortex-A7 processor 101 through a GPIO interface and is connected with the power supply control module 4;
in this embodiment, preferably, the digital audio power amplifying module 2 has the following working principle: based on Nyquist sampling theorem, sampling and converting an audio signal source in a Pulse Width Modulation (PWM) mode, changing the pulse width of a digital signal generated by conversion and the amplitude of an original signal of a corresponding sampling point according to a certain relation, driving a power switch transistor MOSFET to output a digital signal corresponding to a high-power waveform by the digital signal, and reducing an audio analog signal after power amplification by a low-pass filter LPF.
In the embodiment of the present invention, the wired and wireless communication module 14 preferably communicates with the service platform center using TCP/IP protocol communication.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the specification and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. A multipurpose emergency rescue Internet of things device is characterized in that,
the method comprises the following steps: the system comprises an embedded industrial control mainboard module (1), a digital audio power amplification module (2) electrically connected with the embedded industrial control mainboard module (1), a sensor module (3) used for collecting various environmental information data around a dangerous source, a power supply control module (4) with 220V alternating current and 12V direct current power supply interfaces and an environmental temperature control module (5);
further comprising: the system comprises a one-key alarm button module (6), a door magnet module (7), an RFID card reader module (8), an audio processing module (9), a mainboard fan module (10), a starlight alarm module (11), a video processing module (12), a camera (13) for performing video analysis on a set environment, and a wired and wireless communication module (14) for uploading information instructions of a local ID state information receiving service platform center in real time, wherein the one-key alarm button module (6), the door magnet module (7), the RFID card reader module (8), the audio processing module (9), the mainboard fan module (10), the star.
2. The multipurpose emergency rescue internet of things device according to claim 1, wherein the embedded industrial control mainboard module (1) comprises an ARM Cortex-A7 processor (101), a switch/display lamp (102) electrically connected with the ARM Cortex-A7 processor (101), a watchdog (103), a power manager (104), a dual-channel DDR3 memory (105), an EMMC memory (106), a TF card memory (107), a USB communication unit (108), an I2C communication unit (109), a UART communication unit (110), a GPIO interface unit (111) and an IR processing unit (112) for receiving infrared signals;
the UART communication unit (110) is electrically connected with the sensor module (3) and the environmental temperature control module (5) through a UART interface;
the watchdog (103) is used for receiving a plurality of pulse trains sent by the ARM Cortex-A7 processor (101) periodically, resetting the timer after detecting the plurality of pulse trains, and sending a high-low level reset ARM Cortex-A7 processor (101) by the watchdog (103) when the plurality of pulse trains are not received within a preset time length of the timer;
the ARM Cortex-A7 processor (101) is connected with a wired and wireless communication module (14), a USB communication unit (108), a video processing module (12), an audio processing module (9) and an IR processing unit (112) through SPI interfaces;
the ARM Cortex-A7 processor (101) is connected with the I2C communication unit (109) through an I2C interface;
the ARM Cortex-A7 processor (101) is connected with the digital audio power amplification module (2), the power supply control module (4), the environment temperature control module (5), the one-key alarm button module (6), the door magnet module (7), the mainboard fan module (10) and the starlight alarm module (11) through the GPIO interface unit (111).
3. The multipurpose emergency rescue internet of things device as claimed in claim 2, wherein the ARM Cortex-a7 processor (101) is a 32-bit RISC architecture-type processor; the memory of the dual-channel DDR3 memory (105) is 8G, and the memory of the EMMC memory (106) is 16G.
4. The multipurpose emergency rescue internet of things device as claimed in claim 2, wherein the AUDIO processing module (9) is provided with an AUDIO input interface, an AUDIO output interface, and a speaker interface for connecting the built-in speaker (16) and/or the digital AUDIO power amplification module (2);
the video processing module (12) is provided with an HDMI interface, an LVDS interface, an MIPI interface and a VID interface connected with the camera (13), wherein the LVDS interface and the MIPI interface are connected with an LED display/LCD display (15).
5. The multipurpose emergency rescue internet of things device as claimed in claim 1, wherein the wired and wireless communication module (14) comprises a 40MHz communication unit (141), a 4G/5G/GPS communication unit (142), a WLAN communication unit (143), and a 100M ethernet communication unit (144).
6. The multipurpose emergency rescue internet of things device as claimed in claim 2, wherein the sensor module (3) comprises a pressure sensor (31), a temperature and humidity sensor (32), a wind speed sensor (33), a water level sensor (34), a flame sensor (35) and a gas sensor (36), and the power control module (4) supplies power to the sensors comprised by the sensor module (3);
the pressure sensor (31), the temperature and humidity sensor (32), the wind speed sensor (33), the water level sensor (34), the flame sensor (35) and the gas sensor (36) are electrically connected in sequence;
the sensors included in the sensor module (3) are respectively communicated with the ARM Cortex-A7 processor (101) through RS485 interfaces.
7. The multipurpose emergency rescue internet of things device as claimed in claim 4, wherein the power control module (4) comprises an AC power automatic protection unit (41), an AC-to-DC power supply unit (42), a power switching unit (43), an AC power control unit (44) and an audio detection control unit (45);
the AC power supply automatic protection unit (41) is provided with an alternating current 220V voltage input terminal, is electrically connected with an AC-to-DC power supply unit (42) and an AC power supply control unit (44) and is used for carrying out surge absorption, overvoltage and undervoltage detection on input voltage, if the input voltage exceeds 230V or is lower than 200V, the system is subjected to power-off protection, the power supply is recovered after twenty seconds of danger relief, the system is subjected to short circuit, electric leakage, overcurrent and overload detection, if the input voltage has problems, the system is subjected to power-off protection, the power supply is recovered after twenty seconds of danger relief, and the system is used for providing trip times statistics;
the AC-DC power supply unit (42) is connected with the power supply switching unit (43) and the AC power supply control unit (44) and is used for converting the AC input voltage into +12 DC voltage;
the power supply switching unit (43) is connected with a direct current 12V voltage input terminal, and the power supply output end of the power supply control module (4) is electrically connected with the embedded industrial control main board module (1), the digital audio power amplification module (2), the environment temperature control module (5), the door magnet module (7), the RFID card reader module (8), the starlight alarm module (11), the camera (13) and the LED display/LCD display;
and the audio detection control unit (45) is connected with the loudspeaker interface and is used for starting the digital audio power amplification module (2) when detecting an audio signal, otherwise, after delaying for a preset time length, controlling the digital audio power amplification module (2) to be powered off.
8. The multipurpose emergency rescue internet of things device as claimed in claim 2, wherein the ambient temperature control module (5) comprises an ambient temperature detection unit (51) and a chassis cooling fan (52), wherein the ambient temperature detection unit (51) is connected with the GPIO interface unit (111) and the power control module (4);
when the environment temperature detection unit (51) detects that the environment temperature is lower than 30 ℃, the embedded industrial control mainboard module (1) controls the chassis heat dissipation fan (52) to stop working;
when the environment temperature detection unit (51) detects that the environment temperature is more than or equal to 30 ℃ and less than or equal to 40 ℃, the embedded industrial control mainboard module (1) controls the low-speed work of the chassis heat dissipation fan (52);
when the environment temperature detection unit (51) detects that the environment temperature is greater than or equal to 30 degrees and greater than 40 degrees, the embedded industrial control main board module (1) controls the chassis heat dissipation fan (52) to work at full speed.
9. The multipurpose emergency rescue internet of things device as claimed in claim 4, wherein the digital audio power amplification module (2) comprises an audio preamplifier (21), a high-power audio power amplifier (22), an LCR filter (23), a horn protection unit (24), a voltage conversion unit (25) for converting alternating current into BOV/+ -15V voltage, a temperature control unit (26), and a power amplifier cooling fan (27);
the AUDIO preamplifier (21) is connected with an AUDIO interface, a high-power AUDIO power amplifier (22) and a voltage conversion unit (25);
the high-power audio power amplifier (22) is connected with the LCR filter (23) and the voltage conversion unit (25);
the loudspeaker protection unit (24) is connected with the LCR filter (23), the loudspeaker and the GPIO interface unit (111);
the temperature control unit (26) is connected with the voltage conversion unit (25) and the power amplifier cooling fan (27);
the voltage conversion unit (25) is connected with the ARM Cortex-A7 processor (101) through the GPIO interface and is connected with the power supply control module (4).
10. The multipurpose emergency rescue internet of things device as claimed in any one of claims 1 to 9, wherein the wired and wireless communication module (14) communicates with the service platform center using TCP/IP protocol communication.
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| CN202010167649.8A CN111556088A (en) | 2020-03-11 | 2020-03-11 | Multipurpose emergency rescue Internet of things device |
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