Intelligent patrol car for storage

Abstract

The invention discloses an intelligent patrol car for warehousing. The intelligent patrol car comprises a patrol car body, a lower mechanism and an upper mechanism, the lower mechanism comprises a tracking module, an environment detection module and a lower control module, and the lower control module is in communication connection with the upper mechanism through the communication module; the upper mechanism comprises an upper control module, a display module, a perpetual calendar module and an alarm module, the upper control module is used for processing environment data, monitoring whether the data is abnormal or not, transmitting the processed environment data and data generated by the perpetual calendar module to the display module and displaying the data to an operator on duty, and when monitoring that the data is abnormal, the alarm module gives an alarm to the operator on duty. The lower control module controls the alarm module to give an alarm to prompt operators on duty. The intelligent patrol car capable of replacing manual detection performs remote multi-point patrol monitoring, realizes non-blind area data monitoring, automatically gives an alarm after collecting abnormal data, prompts operators on duty in time, improves the working efficiency, and reduces the labor intensity.

Description

Technical Field

[0001] The present invention relates to the technical field of patrol vehicles, and in particular to an intelligent patrol vehicle for warehousing. Background Art

[0002] As an important part of the logistics industry, warehousing has played a vital role in the development of modern logistics. With the gradual development of society, the logistics industry has also continued to develop, and people's material needs have also increased. At present, the cargo throughput of my country's warehousing is getting larger and larger, and the inventory volume is also increasing. The economic income of warehousing has also increased, and more investment has been made in warehousing management.

[0003] The safety management of warehousing also plays a very important role in the entire logistics system. If there is a problem with safety management, it will directly affect the quality of goods. For example, shopping malls and supermarkets store goods according to the characteristics of goods, and manage the warehouses according to the temperature and humidity of the goods. Winemaking companies clearly require that the wine cannot be exposed to light. Pharmaceutical companies strictly control the temperature and humidity of the storage environment of drugs. Fruits and vegetables strictly control the temperature and humidity of the storage environment, carbon dioxide gas concentration, etc. These requirements are a relatively high challenge for modern warehousing management. Ensuring the quality of goods is a very important link, which requires warehouse managers to patrol and inspect 24 hours a day. Once a mistake occurs, it may cause spoiled products to be delivered to people's mouths, which may cause food poisoning to the eater and cause losses to the company. Having a good storage environment control can not only ensure the quality of stored goods, but also increase the life of stored goods. Therefore, the safety management and quality assurance of warehousing are crucial in the entire logistics chain. In order to ensure the normal and efficient operation of the entire logistics chain, to save costs as much as possible, reduce waste, detect the storage environment more accurately, and ensure the quality of stored goods, warehouse management must store various types of goods in different environments and conduct real-time testing. Therefore, the importance of storage environment testing is becoming increasingly significant.

[0004] Moisture-proof, mildew-proof, anti-corrosion and explosion-proof are important contents of daily warehouse work and important indicators for measuring the quality of warehouse management. It directly affects the service life and working reliability of stored materials. In order to ensure the smooth progress of daily work, the first problem is to strengthen the monitoring of temperature and humidity in the warehouse, but the traditional method is to use test equipment such as hygrometers, hair hygrometers, bimetallic meters and humidity test papers to manually detect and ventilate, dehumidify and cool down the warehouses that do not meet the temperature and humidity requirements. This manual testing method is time-consuming, labor-intensive, and inefficient, and the temperature and humidity errors of the test are large and random. Therefore, it is necessary to design an intelligent patrol car that can replace manual detection, conduct long-distance multi-point patrol monitoring, realize data monitoring without blind spots, automatically alarm after collecting abnormal data, and remind the on-duty personnel in time to improve work efficiency and reduce labor intensity. Summary of the invention

[0005] The object of the present invention is to provide an intelligent patrol car for warehousing.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] An intelligent patrol car for warehousing, comprising a patrol car body, a lower mechanism and an upper mechanism;

[0008] The patrol car body is provided with a moving mechanism for spatial movement;

[0009] The lower mechanism includes a tracking module for controlling the mobile mechanism to move along a predetermined path, an environment detection module for detecting environmental data surrounding the patrol vehicle body, and a lower control module for controlling the tracking module and the environment detection module, and the lower control module is connected to the upper mechanism through a communication module;

[0010] The upper mechanism includes an upper control module, a display module, a perpetual calendar module and an alarm module. The upper control module is used to process environmental data and monitor whether the data is abnormal. The processed environmental data and the data generated by the perpetual calendar module are transmitted to the display module and displayed to the on-duty personnel. When an abnormality is detected, the lower control module controls the alarm module to sound an alarm to prompt the on-duty personnel.

[0011] Furthermore, the tracking module includes an infrared transmitting tube, an infrared receiving tube and an identification unit. The infrared transmitting tube has four paths and is arranged on both sides of the front of the patrol car body. Infrared light is emitted to a predetermined path through the infrared transmitting tube. The infrared light on the predetermined path is reflected to and received by the infrared receiving tube. The identification unit determines the path direction of the patrol car body according to the received infrared light and feeds back to the moving mechanism.

[0012] Furthermore, the tracking module also includes a tracking indicator light and a rheostat. The tracking indicator light is connected to the infrared receiving tube. If it receives infrared light, it will light up to prompt, otherwise it will go out; it is connected to the infrared transmitting tube through the rheostat to adjust its detection distance.

[0013] Furthermore, the environment detection module includes a temperature and humidity collection unit, a smoke collection unit, a light collection unit and a raindrop collection unit;

[0014] The temperature and humidity acquisition unit is used to collect temperature and humidity data around the patrol car body;

[0015] The smoke collection unit is used to collect smoke data around the patrol car body;

[0016] The illumination collection unit is used to collect illumination data around the patrol vehicle body;

[0017] The raindrop collection unit is used to collect raindrop data around the patrol car body.

[0018] Furthermore, the temperature and humidity collection unit is a DHT11 digital temperature and humidity sensor, the smoke collection unit is an MQ-2 smoke sensor, the light collection unit is a photosensor, and the raindrop collection unit is a raindrop sensor.

[0019] Furthermore, the communication module adopts a Zigbee communication module.

[0020] Furthermore, the mobile mechanism is provided with an L298 motor drive module, which drives two 3-6V motors to work, and the motors drive the four wheels of the patrol car body to rotate for movement and steering.

[0021] Furthermore, the upper control module and the lower control module both use STC89C52RC control chip.

[0022] After adopting the above technical solution, the present invention has the following advantages compared with the background technology:

[0023] The present invention utilizes an intelligent patrol vehicle body to measure the parameters of the patrol vehicle body's surrounding environment such as temperature, humidity and air quality in a non-contact manner, and uses wireless communication technology to transmit the collected data back to a host organization, and uses a display module to display the measured data. The patrol vehicle body can perform long-distance multi-point patrol monitoring along a predetermined path, and realize data monitoring without blind spots according to the predetermined path. When the temperature and humidity of the warehouse exceed the specified range, an alarm is automatically given. The on-duty personnel centrally control each warehouse in the studio, grasp the situation at any time, and take corresponding measures in time for abnormal situations. This greatly improves work efficiency and reduces labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a system structure diagram of the present invention;

[0025] Figure 2 It is the circuit structure diagram of the lower mechanism of the present invention;

[0026] Figure 3 It is the circuit structure diagram of the upper mechanism of the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] It should be noted that in the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] Example

[0030] Cooperate Figures 1 to 3 As shown, the present invention discloses an intelligent patrol car for warehousing, comprising a patrol car body 1, a lower mechanism 2 and an upper mechanism 3;

[0031] The patrol car body 1 is provided with a moving mechanism for spatial movement.

[0032] The lower mechanism 2 includes a tracking module 21 for controlling the movement of the mobile mechanism along a predetermined path, an environment detection module 22 for detecting the surrounding environment data of the patrol car body, and a lower control module 23 for controlling the tracking module and the environment detection module. The lower control module is connected to the upper mechanism through a communication module.

[0033] The upper mechanism 3 includes an upper control module 31, a display module 32, a perpetual calendar module 33 and an alarm module 34. The upper control module 31 is used to process environmental data and communicate with the lower control module, and monitor whether its data is abnormal, and transmit the processed environmental data and the data generated by the perpetual calendar module 33 to the display module 32 to show them to the duty personnel. When abnormality is detected, the lower control module 31 controls the alarm module 34 to alarm the duty personnel. The alarm module 34 includes an audible and visual alarm or a buzzer.

[0034] The communication module 4 uses a Zigbee communication module. The transmission distance of the Zigbee communication module 4 is almost as far as the WiFi transmission distance, the transmission speed is faster, the standby power consumption is lower, and the network can be freely formed with a relatively high degree of freedom. The modules are directly configured to interconnect with each other, and the transmission security is relatively high.

[0035] In the circuit, the ZigBee data transmission receiving port rxd is connected to the control chip txd, and the data transmission port txd is connected to the control chip rxd to realize data reception and transmission, forming a simple serial port communication. A simple transmission test is performed through the serial port tool on the PC side, and the switch of the LED light is controlled by sending 0 and 1. Since the data transmission process is prone to packet loss, a check bit is added in front of the data to determine whether the data is received completely.

[0036] The upper control module 31 and the lower control module 23 both use the STC89C52RC control chip.

[0037] STC89C52RC is a small control chip launched by Macrocrystalline Corporation, which is a commonly used device for electronic engineers. Its main features are the use of Flash memory technology, which reduces the manufacturing cost. Its software and hardware are fully compatible with MCS-51, and it is manufactured using high-density non-volatile memory manufacturing technology. It combines a multifunctional 8-bit CPU and flash memory in a single chip, which can be quickly accepted by the majority of users. The electrically erasable characteristics of its program make development and testing easier, providing a highly flexible and inexpensive solution for many embedded control systems.

[0038] The tracking module 21 includes an infrared transmitting tube, an infrared receiving tube and an identification unit. The infrared transmitting tube has four paths and is arranged on both sides of the front of the patrol car body 1. The infrared transmitting tube emits infrared light to a predetermined path, and the infrared light on the predetermined path is reflected to the infrared receiving tube and received. The identification unit determines the moving path direction of the patrol car body 1 according to the received infrared light and feeds it back to the moving mechanism.

[0039] The upper mechanism 3 of this embodiment is also provided with a control device, such as access control through a touch screen and key input control, data transmission between the control device and the upper control module 31, input of the range of the predetermined path, moving speed, time period, environmental collection content and abnormal judgment rules or thresholds, the upper control module 31 remotely transmits the data to the lower control module 23 through the communication module 4, and the patrol car body 1 is controlled by the lower control module 23 according to the control information.

[0040] The tracking module 21 also includes a tracking indicator light and a rheostat. The tracking indicator light is connected to the infrared receiving tube. If it receives infrared light, it will light up to prompt, otherwise it will go out; it is connected to the infrared transmitting tube through a rheostat to adjust its detection distance.

[0041] In the circuit, the four output ends of the infrared tracking module 21 are connected to the four I / O ports of the control chip, and the four infrared sending boards are placed on both sides of the front of the vehicle. According to the infrared reflection principle, when there is black tape on the ground in the infrared area, the light emitted by the infrared transmitting tube is absorbed, and the receiving tube cannot receive the infrared signal. The indicator light on the module goes out. At this time, the out port continuously outputs a high level, and the detection distance can be adjusted through the variable resistor on the circuit board. The signal emitted by the infrared transmitting tube is reflected to the infrared receiving tube, and the control chip determines whether it needs to turn or move forward through the level signal of the detected I / O port.

[0042] The environment detection module 22 includes a temperature and humidity collection unit, a smoke collection unit, a light collection unit and a raindrop collection unit;

[0043] The temperature and humidity collection unit is used to collect temperature and humidity data around the patrol car body 1;

[0044] The smoke collection unit is used to collect smoke data around the patrol car body 1;

[0045] The illumination collection unit is used to collect illumination data around the patrol car body 1;

[0046] The raindrop collection unit is used to collect raindrop data around the patrol car body 1.

[0047] The temperature and humidity acquisition unit is a DHT11 digital temperature and humidity sensor. The DHT11 digital temperature and humidity sensor is a temperature and humidity composite sensor with a calibrated digital signal output. It uses dedicated digital module acquisition technology and temperature and humidity sensing technology to ensure that the product has extremely high reliability and excellent long-term stability. The sensor includes a resistive humidity sensing element and an NTC temperature measuring element, and is connected to a high-performance 8-bit control chip. Therefore, the product has the advantages of excellent quality, ultra-fast response, strong anti-interference ability, and extremely high cost performance. Each DHT11 sensor is calibrated in an extremely precise humidity calibration room. The calibration coefficients are stored in the OTP memory in the form of a program, and these calibration coefficients are called in the sensor during the processing of the detection signal. The single-wire serial interface makes system integration simple and fast. The ultra-small size, extremely low power consumption, and signal transmission distance of more than 20 meters make it the best choice for all kinds of applications and even the most demanding applications.

[0048] The humidity sensor module uses the DHT11 temperature and humidity sensor module. The data interface of the DHT11 module is connected to the control chip I / O. The data interface is mainly used for information transmission and information synchronization between the DHT11 module and the control chip. It uses a single bus transmission method. The transmission time required each time is 4ms. Each time, 40 bits of data are collected, where the 40 bits of data are divided into 8-bit temperature integer value, 8-bit humidity integer value, 8-bit temperature decimal value, 8-bit humidity decimal value and 8-bit checksum. Data collection needs to meet the checksum before it can be sent, where the 8-bit checksum = 8-bit temperature integer value + 8-bit temperature decimal value + 8-bit humidity integer value + 8-bit humidity decimal value. DHT11 will not actively send a signal. DHT11 needs the start signal sent by the control chip. When DHT11 detects the start signal sent by the control chip, it will collect and send data. If the start signal has not been received, DHT11 is in low power mode.

[0049] The smoke collection unit is an MQ-2 smoke sensor. The MQ-2 smoke sensor is used to collect smoke data. The MQ-2 module is a sensor with dual-channel signal output. It can use TTL level output or analog output through digital-to-analog conversion. It can detect natural gas, liquefied gas, methane, ethane, alcohol, smoke, etc., and can detect them effectively and accurately. This design uses TLL level output. The upper limit value is adjusted through the sliding rheostat on the MQ-2 module. The level of the data is changed through the TLL level output. When the control chip detects that the level of the data has changed, an alarm is issued.

[0050] The light collection unit is a photosensor. The light collection module uses a photosensor, which uses a photoresistor to convert light signals into electrical signals. We use the electrical signals to judge the strength of the light source. When the light intensity is high, the resistance value on the module decreases, and the current flowing through increases. When the light intensity of the environment is low, the resistance on the module also increases, causing the current flowing through to decrease. At this time, it is only necessary to judge the intensity of the light by judging the size of the current. There is a sliding rheostat on the module. We change the critical point for judging the intensity of the light by changing the sliding rheostat. When the light intensity exceeds the set value, the DO port on the module will output a low level. When the light intensity is low and does not exceed the set value, the D0 port will output a high level.

[0051] The raindrop collection unit is a raindrop sensor. The raindrop sensor consists of two parts, one is a detection module, and the other is a sensing board. When there are raindrops on the sensing board, the voltage will be detected by the detection module and a low level will be output to the D0 port on the module. When there are no raindrops on the sensing board, the voltage is normal and a high level will be output to the D0 port.

[0052] The display module 32 of this embodiment is an OLED display screen, which uses a 0.96-inch OLED display screen. The OLED display screen is relatively small and can display a variety of content such as Chinese patterns. It has low power consumption and strong low-temperature resistance. It can work at minus 40 degrees. It only needs two I / O ports. Through the IIC protocol, multiple peripherals can be hung on two lines at the same time, saving the use of I / O ports.

[0053] The display screen uses the IIC bus protocol for connection, which saves the use of I / O ports. The IIC bus protocol is composed of serial data lines and serial clock lines. The communication principle is to use the I / O port of the control chip to judge the high and low level timing of the data line and the clock line. The IIC protocol can suspend multiple devices at the same time. Each device has its own unique address. The master device determines which device the currently transmitted information comes from by judging the address. When neither the master device nor the device is transmitting data, the IIC bus is in an idle state, and the serial data line and serial clock line are in a high level state. The devices on the bus cannot actively communicate with the master device. Only when the master device sends a start signal can communication be carried out. When the communication ends, a stop signal needs to be sent. Each data transmission is 8 bits, and the transmission content is added with 1 bit ACK. During the whole process, each time the master device sends 1 byte of data to the device on the bus, the master device needs to wait for the device on the bus to feedback a response or non-response to ensure that the data can be accurately transmitted.

[0054] The mobile mechanism is provided with an L298 motor drive module, which drives two 3-6V motors to work, and the motors drive the four wheels of the patrol car body 1 to rotate for movement and steering.

[0055] The L298N motor driver module is used as the driver of the car's motor. L298N works relatively stably and can directly drive two 3 to 6V motors. It also provides a 5V interface to provide power for the minimum system of the control chip. It is easy to use and is commonly used to drive the car. The price is also relatively cheap.

[0056] The module of this embodiment has 4 data receiving ports, 2 enable ports, 2 output ports, and a 5V output port. When the 4 data receiving ports and 2 enable ports are connected to the I / O port of the control chip, and the 2 enable ports are connected to the motors on both sides, the forward, backward, left and right movement of the car is controlled by controlling the high and low levels of the I / O port output by the control chip, and the PWM is controlled by the two enable ports, thereby controlling the rotation rate of the motor. Because a four-wheeled car is used, turning needs to be achieved by different directions and speeds of the motors on both sides.

[0057] The main features of this embodiment are:

[0058] First, the intelligent inspection vehicle can be used to collect and detect environmental parameters such as temperature and humidity in the warehouse, replacing manual inspections. This can cover a more comprehensive inspection area and avoid blind spots.

[0059] Second, in the process of intelligent inspection vehicles, through the combination with the Internet of Things, network communication and other technologies, automatic detection and early warning of the warehouse environment can be achieved, providing a scientific decision-making basis for warehouse management and reducing unnecessary losses;

[0060] The third is to use ZigBee technology as a means of wireless communication, which is a low-cost, low-power, easy-to-deploy and highly scalable wireless communication technology. It is flexible to install and easy to maintain later.

[0061] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An intelligent patrol car for warehousing, characterized by: It includes a patrol car body, a lower mechanism and an upper mechanism; The patrol car body is provided with a moving mechanism for spatial movement; The lower mechanism includes a tracking module for controlling the mobile mechanism to move along a predetermined path, an environment detection module for detecting environmental data surrounding the patrol vehicle body, and a lower control module for controlling the tracking module and the environment detection module, and the lower control module is connected to the upper mechanism through a communication module; The upper mechanism includes an upper control module, a display module, a perpetual calendar module and an alarm module. The upper control module is used to process environmental data and monitor whether the data is abnormal. The processed environmental data and the data generated by the perpetual calendar module are transmitted to the display module and displayed to the on-duty personnel. When an abnormality is detected, the lower control module controls the alarm module to sound an alarm to prompt the on-duty personnel.

2. The intelligent patrol vehicle for warehousing as claimed in claim 1, characterized in that: The tracking module includes an infrared transmitting tube, an infrared receiving tube and an identification unit. The infrared transmitting tube has four paths and is arranged on both sides of the front of the patrol car body. Infrared light is emitted to a predetermined path through the infrared transmitting tube. The infrared light on the predetermined path is reflected to and received by the infrared receiving tube. The identification unit determines the path direction of the patrol car body according to the received infrared light and feeds back to the moving mechanism.

3. The intelligent patrol vehicle for warehousing as claimed in claim 2, characterized in that: The tracking module also includes a tracking indicator light and a rheostat. The tracking indicator light is connected to the infrared receiving tube. If it receives infrared light, it will light up to prompt, otherwise it will go out; it is connected to the infrared transmitting tube through the rheostat to adjust its detection distance.

4. The intelligent patrol vehicle for warehousing as claimed in claim 1, characterized in that: The environment detection module includes a temperature and humidity collection unit, a smoke collection unit, a light collection unit and a raindrop collection unit; The temperature and humidity collection unit is used to collect temperature and humidity data around the patrol car body; The smoke collection unit is used to collect smoke data around the patrol car body; The illumination collection unit is used to collect illumination data around the patrol vehicle body; The raindrop collection unit is used to collect raindrop data around the patrol car body.

5. The intelligent patrol vehicle for warehousing as claimed in claim 4, characterized in that: The temperature and humidity collection unit is a DHT11 digital temperature and humidity sensor, the smoke collection unit is an MQ-2 smoke sensor, the light collection unit is a photosensor, and the raindrop collection unit is a raindrop sensor.

6. The intelligent patrol vehicle for warehousing as claimed in claim 1, characterized in that: The communication module adopts a Zigbee communication module.

7. The intelligent patrol vehicle for warehousing as claimed in claim 1, characterized in that: The mobile mechanism is provided with an L298 motor drive module, which drives two 3-6V motors to work, and the motors drive the four wheels of the patrol car body to rotate for movement and steering.

8. The intelligent patrol vehicle for warehousing as claimed in claim 1, characterized in that: The upper control module and the lower control module both adopt the STC89C52RC control chip.

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