CN111735452A - Low-power consumption container door opening monitoring facilities based on little acceleration sensor - Google Patents
Low-power consumption container door opening monitoring facilities based on little acceleration sensor Download PDFInfo
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- CN111735452A CN111735452A CN201911387066.XA CN201911387066A CN111735452A CN 111735452 A CN111735452 A CN 111735452A CN 201911387066 A CN201911387066 A CN 201911387066A CN 111735452 A CN111735452 A CN 111735452A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
- G01C21/18—Stabilised platforms, e.g. by gyroscope
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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Abstract
The invention discloses a low-power-consumption container door opening monitoring device based on a micro-acceleration sensor, which comprises a main control module, a sensor module, a positioning module, a communication module and a power supply module, wherein the main control module is used for controlling the door opening of a container; the sensor module adopts a six-axis acceleration sensor, measures the current motion state information and sends the current motion state information to the main control module; the main control module judges whether the box door is opened according to the current motion state information of the equipment, and if the current equipment is monitored to have angular acceleration around a Z axis besides linear speed, the box door is opened; the positioning module sends the position information of the equipment to the main control module and sends the position information of the equipment to a receiving end through the communication module; the main control module calculates the motion state of the container door according to the data of the sensor module, and sends information to the receiving end equipment through the communication module, so that the opening condition of the container door can be accurately detected, and remote wireless communication is realized.
Description
Technical Field
The invention relates to a low-power consumption remote monitoring device, in particular to a low-power consumption container door opening monitoring device based on a micro acceleration sensor.
Background
The internet of things equipment can comprehensively monitor the operation condition and the external environment of a product through a sensor, and the application scene of the internet of things equipment can also go deep into the aspects of production and life along with the global development of the internet of things technology. Today, the work load of customs workers on the acceptance of imported and exported goods is increasing. After opening inspection of the over-closed goods, the goods are often illegally exchanged. And frequent unpacking inspection of containers consumes a large amount of manpower and material resources, so a set of container opening monitoring system needs to be set up to monitor the condition that the container door is opened in real time. The current commonly used door opening monitoring method mostly adopts electromagnetic switches such as a magnetic reed switch to realize the relative position monitoring of the door and the door frame, needs two installation devices, is complex in installation, low in reusability and relatively high in cost.
Aiming at the actual situation of monitoring the customs container, the container has large mobility and is distributed within a certain distance range, and a monitoring device which is simple, convenient, easy to disassemble, reliable in detection and long in transmission distance needs to be designed to monitor the inspected container in real time.
Disclosure of Invention
The invention aims to provide low-power-consumption container door opening monitoring equipment based on a micro acceleration sensor.
The technical scheme for realizing the purpose of the invention is as follows: a low-power-consumption container door opening monitoring device based on a micro-acceleration sensor comprises a main control module, a sensor module, a positioning module, a communication module and a power supply module;
the sensor module adopts a six-axis acceleration sensor, measures current motion state information and sends the current motion state information to the main control module; the main control module judges whether the box door is opened according to the current motion state information of the equipment, and if the current equipment is monitored to have angular acceleration around a Z axis besides linear speed, the box door is opened;
the positioning module sends the position information of the equipment to the main control module and sends the position information of the equipment to a receiving end through the communication module;
the main control module is electrically connected with the sensor module, the positioning module, the communication module and the power supply module, calculates the motion state of the container door according to the data of the sensor module, and sends information to the receiving end equipment through the communication module;
and the power supply module is used for supplying power to the monitoring equipment and carrying out voltage self-detection.
Furthermore, the container door opening monitoring equipment is adsorbed on the surface of the container door of the container in a magnet mode.
Furthermore, the six-axis acceleration sensor is composed of a three-axis acceleration sensor, a three-axis gyroscope and a digital motion processor, the three-axis acceleration sensor is used for measuring the three-axis acceleration of the equipment, the three-axis gyroscope is used for measuring the three-axis angular acceleration of the equipment, the digital motion processor receives the data of the three-axis acceleration sensor and the three-axis gyroscope, calculates the current motion state information and sends the current motion state information to the main control module.
Furthermore, the positioning module adopts a GPS positioning module, a Beidou positioning module, a base station positioning module or a wifi positioning module.
Further, the communication module adopts a LoRa communication module.
Further, the power module supplies power in a self-powered manner by using an internal battery.
Compared with the prior art, the invention has the following remarkable advantages: (1) the low-power consumption container door opening monitoring equipment provided by the invention can accurately detect the opening condition of the container door and realize remote wireless communication; (2) the equipment has small volume and light weight, and can be conveniently arranged on the surface of the container door of the container; (3) the cost of single equipment is low, and the device is suitable for occasions of batch use; (4) the battery power supply mode is adopted, and the endurance time is more than 2 years; (5) the wireless communication is carried out by adopting the LoRa spread spectrum technology, so that the communication distance can reach 3-5km, and the power consumption is low; meanwhile, LoRaWan is adopted to easily realize large-scale networking, all monitoring devices in a certain range can form an Internet of things for unified management, and the problem of monitoring containers after customs inspection and acceptance is effectively solved.
Drawings
Fig. 1 is a schematic diagram of a low-power consumption container door opening monitoring device module based on a micro acceleration sensor.
Detailed Description
In the wireless communication of the Internet of things industry, the mainstream technologies such as GPRS, LTE, NB-loT, LoRa and the like are applied more. The hardware cost, the network cost and the installation cost are comprehensively considered, and the self-networking is carried out by adopting the LoRa technology under the condition of small data volume transmission, so that a feasible scheme is provided. LoRa (Long Range radio) is a low-power local area network wireless standard established by semtech, and during wireless transmission, the low power consumption is generally difficult to cover a long distance, and half of the long distance is high in power consumption, and the LoRa is mainly characterized in that a spread spectrum modulation technology is adopted, a longer communication distance is obtained under the same power consumption, the communication distance can reach 3-5km in a town and 15km in an open suburban area, the service life of a battery can reach 10 years due to the lower power consumption, the reliability is high, and the anti-interference performance is strong.
The six-axis acceleration sensor integrates a three-axis accelerometer and a three-axis gyroscope, and can measure the motion acceleration and the rotation angular velocity in each spatial direction. At present, MEMS acceleration sensors are already in the fields of aviation, aerospace, navigation, automobiles, weaponry and the like, have the characteristics of small volume, light weight, low cost, low power consumption, high reliability and the like, and are suitable for being applied to occasions with low energy consumption requirements in a large scale.
The invention provides a container door opening monitoring device which is convenient to operate, strong in reliability and low in power consumption, and a set of intelligent monitoring system for monitoring the door opening states of all containers is set up, and the intelligent monitoring system has the following functions: door opening monitoring, position monitoring, wireless communication and intelligent alarm.
The container door opening monitoring device adopts a magnet mode, can be directly adsorbed on the surface of the door of the container, and can detect the opening action of the door when the door is opened, send out an alarm and send information to the monitoring terminal. As shown in fig. 1, the monitoring apparatus mainly includes: the device comprises a main control module, a sensor module, a positioning module, a communication module and a power supply module.
The main control module is electrically connected with other modules, the ARM with small size, low power consumption and strong function is used as a core processor, the working information of the monitoring equipment can be processed, the motion state of the container door is calculated according to the data of the sensor module, and the information is sent to the receiving end equipment through the communication module.
The sensor module takes a six-axis acceleration sensor MPU6050 as a core, the six-axis acceleration sensor comprises a three-axis acceleration sensor, a three-axis gyroscope and a digital motion processor, the three-axis acceleration sensor can accurately measure three-axis acceleration of the equipment, the gyroscope can measure three-axis angular acceleration of the equipment, the digital motion processor receives data of the three-axis acceleration sensor and the three-axis gyroscope, calculates current motion state information and sends the current motion state information to the main control module, the motion state information comprises three-axis acceleration and three-axis angular acceleration, the main control module judges whether the box door is opened according to the current motion information of the equipment, and if the current equipment is monitored to have angular acceleration around a Z axis besides the linear velocity, the box door is opened.
Furthermore, the positioning module adopts a GPS positioning module, a Beidou positioning module, a base station positioning module or a wifi positioning module, and sends the position information of the equipment to the main control module and sends the position information to the receiving end through the communication module.
Furthermore, communication module adopts loRa communication module, realizes long-range wireless communication function.
Furthermore, the power module has the main functions of supplying power to the equipment and detecting the voltage. In order to improve the tightness of the equipment, an internal battery self-powered mode is adopted for supplying power.
The foregoing is a summary of the present invention, and the following is a clear, detailed, and complete description of the present invention taken in conjunction with the accompanying drawings for better illustrating its design principles, operational features, and characteristic advantages.
Example 1
The container door opening monitoring equipment can be directly installed on the surface of the door of the container, and when the door is opened, the equipment can detect the opening action of the door, send out an alarm and send information to a monitoring end. The equipment comprises a main control module, a sensor module, a positioning module, a communication module and a power supply module.
The main control module is electrically connected with other modules, a microprocessor with small size, low power consumption and strong function is used as a core processor, the working information of the monitoring equipment can be processed, the opening and closing state of the container door is calculated according to the data of the acceleration module, and the information is sent to the receiving end equipment through the communication module.
The sensor module takes a six-axis acceleration sensor MPU6050 as a core, the six-axis acceleration sensor is composed of a three-axis acceleration sensor, a three-axis gyroscope and a digital motion processor, three-axis acceleration and three-axis angular acceleration of the equipment can be accurately measured, motion state information is sent to the main control module, and the main control module judges whether the box door is opened or not according to the acceleration information.
The positioning module adopts a GPS positioning module, transmits the position information of the equipment to the main control module and transmits the position information to the receiving end through the communication module. Communication module adopts loRa communication module, realizes long-range wireless communication function. The power module adopts a mode of internal lithium battery power supply.
The chip, the interface, the communication protocol, the communication code, the program and the like provided in the embodiment of the invention are all in the prior art and are not taken as technical features required to be protected by the invention.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (6)
1. A low-power consumption container door opening monitoring device based on a micro-acceleration sensor is characterized by comprising a main control module, a sensor module, a positioning module, a communication module and a power supply module;
the sensor module adopts a six-axis acceleration sensor, measures current motion state information and sends the current motion state information to the main control module; the main control module judges whether the box door is opened according to the current motion state information of the equipment, and if the current equipment is monitored to have angular acceleration around a Z axis besides linear speed, the box door is opened;
the positioning module sends the position information of the equipment to the main control module and sends the position information of the equipment to a receiving end through the communication module;
the main control module is electrically connected with the sensor module, the positioning module, the communication module and the power supply module, calculates the motion state of the container door according to the data of the sensor module, and sends information to the receiving end through the communication module;
and the power supply module is used for supplying power to the monitoring equipment and carrying out voltage self-detection.
2. The micro-acceleration sensor-based low-power consumption container door opening monitoring device according to claim 1, wherein the container door opening monitoring device is attached to the door surface of the container by means of a magnet.
3. The micro-acceleration-sensor-based low-power-consumption container door opening monitoring device as claimed in claim 1, wherein the six-axis acceleration sensor is composed of a three-axis acceleration sensor, a three-axis gyroscope and a digital motion processor, the three-axis acceleration sensor is used for measuring three-axis acceleration of the device, the three-axis gyroscope is used for measuring three-axis angular acceleration of the device, the digital motion processor is used for receiving data of the three-axis acceleration sensor and the three-axis gyroscope, calculating current motion state information and sending the current motion state information to the main control module.
4. The micro-acceleration sensor-based low-power consumption container door opening monitoring device according to claim 1, wherein the positioning module is a GPS positioning module, a beidou positioning module, a base station positioning module or a wifi positioning module.
5. The micro-acceleration sensor-based low-power consumption container door opening monitoring device as claimed in claim 1, wherein the communication module is a LoRa communication module.
6. A micro-accelerometer-based low-power consumption container door-opening monitoring device as claimed in claim 1, wherein the power module is powered by an internal battery that is self-powered.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911387066.XA CN111735452A (en) | 2019-12-30 | 2019-12-30 | Low-power consumption container door opening monitoring facilities based on little acceleration sensor |
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| CN201911387066.XA CN111735452A (en) | 2019-12-30 | 2019-12-30 | Low-power consumption container door opening monitoring facilities based on little acceleration sensor |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078735A1 (en) * | 2011-11-29 | 2013-06-06 | 福建物联天下信息科技有限公司 | Spatial motion sensor |
| CN107462148A (en) * | 2017-09-19 | 2017-12-12 | 浙江大华技术股份有限公司 | A kind of door state detection method and device |
| CN109477729A (en) * | 2016-07-29 | 2019-03-15 | 黑莓有限公司 | Determine barrier opens/closes state |
| CN212228069U (en) * | 2019-12-30 | 2020-12-25 | 江苏金陵智造研究院有限公司 | Container door opening monitoring equipment based on acceleration sensor |
-
2019
- 2019-12-30 CN CN201911387066.XA patent/CN111735452A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078735A1 (en) * | 2011-11-29 | 2013-06-06 | 福建物联天下信息科技有限公司 | Spatial motion sensor |
| CN109477729A (en) * | 2016-07-29 | 2019-03-15 | 黑莓有限公司 | Determine barrier opens/closes state |
| CN107462148A (en) * | 2017-09-19 | 2017-12-12 | 浙江大华技术股份有限公司 | A kind of door state detection method and device |
| CN212228069U (en) * | 2019-12-30 | 2020-12-25 | 江苏金陵智造研究院有限公司 | Container door opening monitoring equipment based on acceleration sensor |
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