An intelligent sensing spherical cabin system for pipeline leakage detection

Abstract

The present invention provides an intelligent sensing pod system for pipeline leak detection, comprising several IPB intelligent sensing pods, a monitoring and early warning system platform, and a user terminal. The IPB intelligent sensing pods communicate with the monitoring and early warning system platform; the monitoring and early warning system platform communicates with the user terminal. The IPB intelligent sensing pods comprise, from top to bottom, a pod body, a middle pod, and a pod cap, with an energy supply pod enclosed between the pod body and the middle pod. A partition is provided within the middle pod, dividing the pod into an upper and lower portion. A PCB motherboard is located within the cavity of the upper portion of the middle pod, and the upper portion of the middle pod mates with the internal threads of the pod body via external threads. The IPB intelligent sensing pods are placed around the pipeline to be tested to collect data. The monitoring data is then transmitted in real time to the leak sensing and early warning platform (IPS) using a 4G antenna. The monitoring and early warning system platform then performs comprehensive analysis of the transmitted data and provides leak point alerts to the user, thus realizing an intelligent sensing and early warning platform from IPB to IPS.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipeline network leakage detection, and in particular relates to an intelligent sensing spherical cabin system for pipeline leakage detection. Background Art

[0002] As an indispensable transportation facility today, pipeline systems play a vital role in the industrial sector and in serving people's lives. Currently, urban underground pipeline networks are interconnected and run throughout the entire industrial system. As pipeline networks age, they are susceptible to leakage due to various factors. Pipeline leaks not only waste resources but can also cause environmental pollution and safety incidents, severely impacting a company's economic performance and social reputation.

[0003] In the prior art, a pipeline leak detection method and system based on gas detection is disclosed with publication number "CN113916469A". This system fills the pipeline to be tested with a gas source and uses a gas collection device to detect the gas source concentration to determine whether the pipeline is leaking. Since the gas has strong fluidity, this technology cannot accurately detect the location of the pipeline leak. Secondly, this technology requires the introduction of a detection gas source into the pipeline. It is suitable for the detection of pipelines that are shut down, but cannot detect pipelines that are in operation, which has great limitations. The pipeline leak detection system and detection method disclosed with publication number "CN118309944A" uses a wearable acoustic wave monitoring device to collect The sound transmitted to the ground by the leaking pipeline is detected by installing the sonic probe on the detection shoe, and using headphones to communicate with the host computer. The strength of the sound is used to determine whether the pipeline is leaking or not. The sound collected by this technology is weakened when transmitted through the ground. Since the buried pipeline is far away from the ground, the sound is transmitted in the form of waves, which will interfere with each other and cause deviations in the measurement results. By detecting the sound transmitted to the ground, the sound collected is usually range-based and cannot accurately determine the specific leakage location of the pipeline. The detection accuracy is not high. The judgment method based on listening to the ground sound is prone to misjudgment and deviation, which greatly reduces the detection accuracy and is not suitable for the detection of buried pipelines.

[0004] The existing technologies have the following problems: 1. Manual inspection method, which relies on professionals to conduct regular inspections of the pipelines, observe the surface condition of the pipelines, check valves and accessories, etc., to determine whether there are any abnormalities in the pipelines. This method is simple and easy to implement, but it is inefficient and easily affected by human factors; 2. Auditory detection method, which uses listening equipment or professional tools to listen near the pipelines and judge by the sound whether the pipelines have leaks or other problems. This method requires high skills from the operators, is greatly affected by subjectivity, and is easily disturbed by environmental noise; 3. Cable detection method, which uses the electromagnetic induction relationship between the cable and the pipeline by laying a cable above the pipeline to detect the direction and burial depth of the pipeline. However, this method has high requirements for cable laying and maintenance, is only suitable for newly buried pipelines, and can only provide limited pipeline information.

[0005] In view of this, the present invention proposes an intelligent sensing ball cabin (IPB) system for pipeline leakage detection. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the present invention provides an intelligent sensing pod (IPB) system for pipeline leak detection. This system places the IPB pod around the pipeline to collect data. Using a 4G antenna, the pod transmits this data in real time to a leak detection and early warning platform (IPS). The IPS analyzes the transmitted data and provides leak alerts to users, ultimately realizing an intelligent sensing and early warning platform from the IPB to the IPS.

[0007] The technical solution adopted by the present invention to solve the technical problem is:

[0008] In a first aspect, the present invention provides an intelligent sensing spherical cabin system for pipeline leakage detection, comprising a plurality of IPB intelligent sensing spherical cabins, a monitoring and early warning system platform, and a user terminal, wherein the IPB intelligent sensing spherical cabins communicate with the monitoring and early warning system platform; the monitoring and early warning system platform communicates with the user terminal;

[0009] The IPB intelligent sensing spherical cabin consists of a cabin body, a middle cabin and a cabin cap from top to bottom. The cabin body is threadedly connected to the middle cabin, and the middle cabin and the cabin cap are combined together. An energy supply cabin is encapsulated between the cabin body and the middle cabin. The antenna in the energy supply cabin extends out of the cabin body and is connected to the monitoring and early warning system platform.

[0010] A partition 23 is provided in the middle cabin 4, which divides the middle cabin into an upper and lower part. The lower part is in the form of a cylindrical boss, and a chamber is provided inside the cylindrical boss. A PCB mainboard is provided inside the chamber of the upper part of the middle cabin 4. The upper part of the middle cabin is adapted to the internal thread of the cabin body 3 through an external thread. A temperature sensor detector 6, an intelligent pyrolysis nanotube 9, an LED status light 10, a geomagnetic sensor, and an acoustic wave detector are installed in the chamber of the lower part of the middle cabin; a radar ultrasonic detector 7 is installed at the lower end of the cylindrical boss. When the cover is closed, the radar ultrasonic detector 7 is located inside the cabin cap 5.

[0011] One end of the water leakage sensing contact 8 is mounted on the energy supply cabin, and the other end passes through the partition 23 and extends into the cavity of the cylindrical boss at the lower part;

[0012] The cabin cap 5 is snap-fitted to the middle cabin 4 to encapsulate the lower portion of the middle cabin in the cabin cap; a temperature sensing compartment 11, a water inlet 13 for the intelligent pyrolysis nanotubes, and a mounting hole 14 for the intelligent pyrolysis nanotubes are provided on the side wall of the cabin cap.

[0013] The contact point of the water leakage sensing contact 8 is not lower than the height of the intelligent pyrolysis nanotube water inlet 13; the detection end of the temperature sensing detector 6 is located in the temperature sensing cabin; the contact position between the cabin cap 5 and the radar ultrasonic detector 7 is provided with a waterproof buffer ring;

[0014] The process of using the intelligent sensing ball cabin system for pipeline leak detection is:

[0015] A. Equipment installation and debugging

[0016] Step 1: Pre-install the IPB intelligent sensing ball cabin 1 and debug the IPB intelligent sensing ball cabin network. The debugging is considered successful when the green light of the LED status light of the IPB intelligent sensing ball cabin 1 flashes for a set time.

[0017] Step 2: Scenario installation mode: First, drill holes at the location to be laid, hoist a number of IPB intelligent sensing capsules 1 0.5 to 1 meter above the buried pipeline, and lead the antenna to the vicinity of the inspection well mouth;

[0018] Step 3: Code and network all IPB intelligent sensing spherical cabin sites on the pipeline to be tested. Use the Beidou positioning system to mark the coordinates of the installed IPB intelligent sensing spherical cabin 1 and import them into Baidu Maps or Amap. Then, connect them to the monitoring and early warning system platform and user terminal.

[0019] Step 4: Data transmission verification, check whether the platform uploads data and upload frequency is normal, and verify each coded IPB intelligent sensing capsule 1 one by one. After debugging is completed, enter the normal intelligent monitoring link;

[0020] Step 5: The PCB mainboard of the IPB intelligent sensing sphere 1 collects relevant data around the pipeline in real time, including water leakage, temperature, acoustic wave data, radar ultrasonic data, and geomagnetic induction data parameters; when the IPB intelligent sensing sphere 1 detects a pipeline leak, it uploads the data to the monitoring and early warning system platform 2 via wireless transmission;

[0021] B. Early warning inspection

[0022] Water leakage monitoring and early warning inspection is carried out based on temperature sensing T, water leakage sensing L and ultrasonic detection S. The specific process is as follows:

[0023] First, determine the probability of leakage according to the following rules:

[0024] (1) If T alarms and L alarms, the alarm level is red, the probability of leakage is 100%, and the pipeline is considered to be leaking;

[0025] (2) If T alarms and S alarms, the alarm level is red, the probability of leakage is 100%, and the pipeline is considered to be leaking;

[0026] (3) If T alarms and L does not alarm, the alarm level is orange and the probability of leakage is 75%;

[0027] (4) If T does not alarm and L alarms, the alarm level is yellow and the probability of leakage is 50%;

[0028] (5) If T does not alarm and S alarms, the alarm level is yellow and the probability of leakage is 50%;

[0029] (6) If T does not alarm and L does not alarm, the alarm level is green, the probability of leakage is 0%, and it is considered that no leakage has occurred;

[0030] For a certain number of sites with a leakage probability that is not 100%, geomagnetic induction data is used to predict whether there are suspected leak points in the pipeline. If the geomagnetic induction data determines that there is no suspected leak point at the site location, the leakage risk level of the corresponding site is downgraded. If the geomagnetic induction data determines that the location is a suspected leak point, the current leakage risk level is maintained.

[0031] After that, the acoustic sensing data is used to determine if there is a leak in the area where the leakage risk has been downgraded. If the acoustic sensing data determines that there is no leak, the leakage risk level of the corresponding site is downgraded again. If the acoustic sensing data determines that there is a leak, the leakage risk level determined by geomagnetic sensing is maintained as the leakage risk level of the current site.

[0032] Each downgrade is reduced by 25% according to the leakage probability. After the site leakage probability is determined, sites with a leakage probability of not less than 75% will be given priority for early warning and on-site inspection.

[0033] Furthermore, the PCB main board integrates a sensing chip, a data transmission module, and a storage unit; the sensing chip includes a temperature sensing module, a water leakage sensing module, a leakage magnetic / geomagnetic sensing module, an ultrasonic detection sensing module, and a sound sensing module, which are electrically connected to the temperature sensing detector 6, the water leakage sensing contact 8, the geomagnetic sensor, the radar ultrasonic detector 7, and the sound wave detector respectively; the sensing chip transmits data to the monitoring and early warning system platform and the storage unit through the data transmission module, and the user end includes a mobile phone APP and a user PC end, and the user end communicates with the monitoring and early warning system platform.

[0034] Furthermore, the L alarm means that when a pipeline leaks, if the site is located in the area where the pipeline leaks, when any one of the water leakage sensing contacts 8 touches water, an L alarm is issued, otherwise the water leakage sensing does not alarm;

[0035] Set the liquid level change threshold. S alarm means that when a leak occurs in the pipeline, the S alarm will be triggered when the cumulative change △ of the liquid level measured by the radar ultrasonic detector is greater than the liquid level change threshold of 15cm. Otherwise, the ultrasonic detection will not trigger an alarm.

[0036] A threshold for changes in geomagnetic field intensity is set. Geomagnetic induction G senses pipeline corrosion caused by local temperature difference stress due to uneven heat dissipation of the pipe wall. If the geomagnetic field intensity change exceeds the threshold, the area exceeding the threshold is identified as an abnormal area, and the location of possible leakage points is predicted to determine whether there are suspected leakage points in the pipeline.

[0037] In a second aspect, the present invention provides an IPB intelligent sensing spherical cabin, which is used for buried pipeline leakage detection. The IPB intelligent sensing spherical cabin comprises, from top to bottom, a cabin body, a middle cabin, and a cabin cap. The cabin body is threadedly connected to the middle cabin, and the middle cabin and the cabin cap are covered together. An energy supply cabin is encapsulated between the cabin body and the middle cabin. An antenna in the energy supply cabin extends out of the cabin body and is connected to the outside.

[0038] A partition 23 is provided in the middle cabin 4, which divides the middle cabin into an upper and lower part. The lower part is in the form of a cylindrical boss, and a chamber is provided inside the cylindrical boss. A PCB mainboard is provided inside the chamber of the upper part of the middle cabin 4. The upper part of the middle cabin is adapted to the internal thread of the cabin body 3 through an external thread. A temperature sensor detector 6, an intelligent pyrolysis nanotube 9, an LED status light 10, a geomagnetic sensor, and an acoustic wave detector are installed in the chamber of the lower part of the middle cabin; a radar ultrasonic detector 7 is installed at the lower end of the cylindrical boss. When the cover is closed, the radar ultrasonic detector 7 is located inside the cabin cap 5.

[0039] One end of the water leakage sensing contact 8 is mounted on the energy supply cabin, and the other end passes through the partition 23 and extends into the cavity of the cylindrical boss at the lower part;

[0040] The cabin cap 5 is snap-fitted to the middle cabin 4 to encapsulate the lower portion of the middle cabin in the cabin cap; a temperature sensing compartment 11, a water inlet 13 for the intelligent pyrolysis nanotubes, and a mounting hole 14 for the intelligent pyrolysis nanotubes are provided on the side wall of the cabin cap.

[0041] The contact point of the water leakage sensing contact 8 is not lower than the height of the intelligent thermal cracking nanotube water inlet 13; the detection end of the temperature sensing detector 6 is located in the temperature sensing cabin; a waterproof buffer ring is provided at the contact position between the cabin cap 5 and the radar ultrasonic detector 7.

[0042] Furthermore, the IPB intelligent sensing ball cabin is capsule-shaped, with a length of 100-150 mm and a diameter of 40-45 mm.

[0043] Furthermore, the cabin 3 is cylindrical, with a closed upper end and an open lower end. The cabin 3 is provided with an internal thread on one side of the open end, and a wiring hole 21 with a diameter of 1 cm is provided at the center position of one side of the closed end for connecting an external antenna. The inner surface of the cabin 3 is provided with a slide rail along its length.

[0044] The energy supply module cooperates with the slide rails of the module body so that the energy supply module can be slidably connected to the module body.

[0045] The energy supply cabin is composed of an upper U-shaped structure and a lower cylindrical structure as a whole. The outer surface of the upper U-shaped structure is provided with a card slot. The lower layer is a cylindrical structure with one end closed and the closed end of the cylinder is connected to the U-shaped structure. The lower layer is a disc-shaped structure with one end closed and the end plate 22 of the disc-shaped structure is fixed to the side of the disc-shaped structure through a circular stepped card slot 20, thereby providing support for the equipment inside the U-shaped structure. The U-shaped structure of the energy supply cabin 12 has a cavity, and a lithium battery pack is placed in the cavity. The lithium battery pack has a battery capacity of 3200mAh and can output a voltage of 3.6 volts to provide power supply for the entire equipment; a 4G antenna terminal 15 is provided on the top of the U-shaped structure of the energy supply cabin 12.

[0046] Furthermore, the cabin cap 5 is in a frustum shape, with a larger upper portion and a smaller lower portion, and the IPB intelligent sensing ball cabin is made of fireproof PC / ABS material.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] (1) Compared with the existing method of detecting the concentration of leaked gas by introducing a gas source into the pipeline, the present invention installs an IPB intelligent sensing spherical cabin around the pipeline and applies the IPS joint monitoring and early warning system platform. The present invention ensures the integrity of the pipeline to be detected, does not require other equipment to be connected to the pipeline, and can still detect the pipeline in operation, thus improving the limitation of the gas source detection technology that cannot be detected during system operation.

[0049] (2) The IPB intelligent sensing spherical cabin of the present invention integrates multiple devices such as temperature sensing detectors, intelligent pyrolysis nanotubes, water leakage sensing contacts, and ultrasonic detectors, which work together to accurately detect the location of pipeline leakage.

[0050] (3) Compared with the prior art of listening to the sound transmitted from the pipeline to the ground through wearable devices, the present invention is closer to the pipeline. Since the equipment is installed below the ground, it can shield other noise interference and the collected data is more accurate. The IPB intelligent sensing spherical cabin of the present invention is equipped with a variety of sensing devices, which can monitor a variety of data and process and analyze the data through the monitoring and early warning system platform, so as to accurately locate the leakage of the pipeline and have high detection accuracy, thereby greatly improving the detection accuracy. After the IPB intelligent sensing spherical cabin of the present invention is installed, no human operation is required on site, and the data is monitored and collected automatically throughout the process, which saves labor costs and ensures personal safety.

[0051] (4) Compared with the existing manual inspection, cable detection and auditory detection, the IPB intelligent sensing spherical cabin system adopted by the present invention can continuously monitor the pipeline to be tested 24 hours a day, and can realize all-weather data collection and wireless transmission, avoiding misjudgment caused by the influence of operator skills and experience, and can reduce the difficulty of equipment layout and investment costs.

[0052] (5) The present invention adopts the IPB intelligent sensing spherical cabin and combines it with the monitoring and early warning system platform to monitor and warn the pipeline to be tested in real time. The IPB senses the water leakage and leakage situation of the pipeline in real time, and intelligently distinguishes the real and fake leakage situation, thereby avoiding false alarms and improving the accuracy of early warning. Compared with the existing technology, the fault tolerance rate of this method is low by collecting a single data as the basis for leakage. The intelligent sensing spherical cabin IPB of the present invention can sense the leakage point and leakage area and implement all-round monitoring around the pipeline to be tested, and upload the detected data to the monitoring and early warning system platform, and comprehensively analyze the data detected by each device, so that the leakage pipeline detection result is more accurate. The monitoring and early warning system platform and the IPB intelligent sensing cabin complement each other. The monitoring and early warning system platform is designed based on the functional matching of the IPB intelligent sensing cabin. The data collected by the intelligent sensing cabin IPB is first pre-processed and pre-analyzed by the internal sensing chip to enhance the data transmission rate and improve the processing efficiency of the system; the next step is to upload the pre-processed data to the monitoring and early warning system platform, and the platform will unify and summarize the different data and conduct a comprehensive analysis to reduce the working pressure of the IPB end of the intelligent sensing cabin and enhance the accuracy of the system; this application uses an integrated PCB motherboard to control the operation of each monitoring device, which not only reduces the power consumption of the control chip, but also reduces the volume occupied by the control chip.

[0053] (6) Compared with the existing technology, the IPB intelligent sensing spherical cabin of the present invention adopts a highly integrated system architecture design, which tightly integrates core components such as sensors, power supplies, and communication modules into an intelligent sensing spherical cabin IPB, which can achieve miniaturization. The intelligent sensing spherical cabin IPB adopts a modular design, which is convenient for expansion and maintenance. Modularity refers to the fact that the various components that make up the intelligent sensing spherical cabin are detachable, and the same parts have uniform models and sizes. When a component on the spherical cabin is damaged, the damaged component can be directly replaced by existing spare parts, such as the energy supply cabin, the middle cabin, and the devices between different ribs on the middle cabin. The modules are connected through standardized interfaces, which reduces the complexity and maintenance cost of the device; the temperature sensor detector and the water leakage sensor contact (at least two) adopt a redundant design, which improves the reliability and stability of the device. When a component fails, the device can still maintain normal operation.

[0054] (7) The various compartments of the IPB intelligent sensing ball cabin of the present invention are connected by threads, which is convenient for assembly, disassembly and subsequent maintenance. The ball cabin is small and easy to carry, with a diameter of only about 42 mm. It can be hoisted around the pipeline to be measured through a hole drilled on the ground without affecting the normal use of the road. The installation location and method can be flexibly selected for different scenarios to avoid the situation where the use scenario is limited due to the monitoring equipment being too large and heavy and cannot be easily moved; all components of the IPB intelligent sensing ball cabin of the present invention adopt a modular design. Once the corresponding module is damaged, it can be replaced by a spare module, with a short maintenance cycle. The modular design can also achieve low maintenance costs.

[0055] (8) This application sets up multiple detection devices to collect multiple data types. The collected data is more extensive, and the comprehensive evaluation reduces the fault tolerance rate.

[0056] (9) The present invention arranges multiple intelligent sensing spherical cabins around the pipeline to be tested. Each intelligent sensing spherical cabin can collect data within its own monitoring range and work together with surrounding sensing spherical cabins at the same time, thereby reducing the number of inspections and lowering the inspection intensity while ensuring accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 This is a schematic diagram of the front structure of the IPB intelligent sensing ball cabin of the present invention;

[0058] Figure 2 This is a side structural diagram of the IPB intelligent sensing ball cabin of the present invention;

[0059] Figure 3 This is a schematic diagram of the rear structure of the IPB intelligent sensing ball cabin of the present invention;

[0060] Figure 4 This is a schematic diagram of the explosion structure of the IPB intelligent sensing spherical cabin of the present invention;

[0061] Figure 5 This is a schematic diagram of the installation structure of various components on the circular boss of the middle cabin of the IPB intelligent sensing ball cabin of the present invention;

[0062] Figure 6 This is a schematic diagram of the arrangement structure of the ribs on the circular boss of the middle cabin of the IPB intelligent sensing spherical cabin of the present invention;

[0063] Figure 7 This is a schematic diagram of the structure of the energy supply cabin of the present invention;

[0064] Figure 8 This is a functional diagram of the PCB mainboard sensing chip in the present invention;

[0065] Figure 9 It is a schematic diagram of the connection structure of the system of the present invention;

[0066] In the figure, 1. IPB intelligent sensing spherical cabin; 2. IPS monitoring and early warning system platform; 3. Cabin body; 4. Middle cabin; 401, trapezoidal groove; 5. Cabin cap; 6. Temperature sensor detector; 7. Radar ultrasonic detector; 8. Water leakage sensing contact; 9. Intelligent pyrolysis nanotube; 10. LED status light; 11. Temperature sensing cabin; 12. Energy supply cabin; 13. Intelligent pyrolysis nanotube water inlet; 14. Intelligent pyrolysis nanotube installation hole; 15. 4G antenna terminal; 16. Card slot; 17 Rib; 18. Mobile phone APP; 19. Computer terminal; 20. Circular card slot; 21 Wiring hole; 22 End plate; 23 Partition. DETAILED DESCRIPTION

[0067] The technical solution of the present invention is further described below in conjunction with the embodiments and drawings. The specific embodiments are only used to further illustrate the present invention and do not limit the scope of protection of this application.

[0068] The present invention provides an intelligent sensing ball cabin system for pipeline leakage detection (see Figure 9 ), the system includes a number of IPB intelligent sensing cabins and monitoring and early warning system platforms;

[0069] The IPB intelligent sensing spherical cabin 1 communicates with the monitoring and early warning system platform 2 through a 4G external antenna; each IPB intelligent sensing spherical cabin can be regarded as a site, and the number and location of sites are arranged on the buried pipeline to be inspected according to the actual situation on site; the monitoring and early warning system platform communicates wirelessly with the user end, which can be a mobile phone APP 18 or a computer PC 19.

[0070] The IPB intelligent sensing ball cabin 1 (see Figure 1-7 ) From top to bottom, it comprises a cabin 3, a middle cabin 4, and a cabin cap 5; the cabin 3 is cylindrical, with a closed upper end and an open lower end. The cabin 3 is provided with an internal thread on one side of the open end, and a wiring hole 21 with a diameter of 1 cm is provided at the center of one side of the closed end for connecting an external antenna. The inner surface of the cabin 3 is provided with a slide guide along its length;

[0071] An energy supply cabin 12 is provided inside the cabin 3, and the energy supply cabin cooperates with the slide rail of the cabin so that the energy supply cabin can be slidably engaged in the cabin;

[0072] The energy supply cabin 12 is composed of an upper U-shaped structure and a lower disc-shaped structure, forming a single unit. The upper U-shaped structure is equipped with multiple slots 16 on its outer surface. The slots are similar in shape to ribs, forming slots between adjacent ribs. The slide rails within the cabin 3 can slide into these slots 16. The lower layer is a disc-shaped structure with one end closed, and the end plate 22 of the disc-shaped structure is secured to the side of the disc-shaped structure via a circular stepped slot 20, thereby providing support for the equipment within the U-shaped structure. The U-shaped structure of the energy supply cabin 12 has a cavity containing a lithium battery pack. The lithium battery pack has a capacity of 3200mAh, can output 3.6V, and has a battery life of 5 years, providing power for the entire device. A 4G antenna terminal 15 is located at the top of the U-shaped structure of the energy supply cabin 12.

[0073] The end plate 22 is provided with a water leakage sensing contact 8, and a wiring hole is provided on the disc-shaped structure for fixing the electronic equipment below (including the water leakage sensing contact and the PCB mainboard, etc.);

[0074] The 4G antenna terminal 15 of the energy supply cabin 12 is electrically connected to the external antenna through the 4G antenna interface on the top of the cabin body 3.

[0075] The middle cabin 4 is cylindrical as a whole, with a partition 23 provided in the middle. The partition divides the middle cabin into two parts, the lower part is in the form of a cylindrical boss, and a chamber is provided inside the cylindrical boss. A PCB mainboard is provided inside the chamber of the upper part of the middle cabin 4. The upper part of the middle cabin is adapted to the internal thread of the cabin body 3 through an external thread. The energy supply cabin equipped with a water leakage sensing contact 8 is encapsulated in the cabin body 3. The water leakage sensing contact 8 passes through the partition 23 and extends into the chamber of the cylindrical boss of the lower part. The chamber of the circular boss is also equipped with a temperature sensing detector 6, an intelligent pyrolysis nanotube 9, an LED status light 10, a geomagnetic sensor, and an acoustic wave detector (acoustic wave sensing);

[0076] A trapezoidal groove 401 is provided on the side surface at the junction of the upper and lower parts; a radar ultrasonic detector 7 is installed at the lower end of the cylindrical boss.

[0077] The cabin cap 5 is in the shape of a truncated cone, with a larger upper part and a smaller lower part. A clip (not shown in the figure) is provided at the upper end of the inner cavity of the cabin cap 5 to match the trapezoidal groove 401 on the side of the middle cabin 4, so that the lower part of the middle cabin is enclosed in the cabin cap; the inner diameter of the upper part of the cabin cap 5 is matched with the maximum diameter of the cylindrical boss of the middle cabin 4, and can be covered on the trapezoidal groove of the middle cabin; after covering, the radar ultrasonic detector 7 is located inside the cabin cap 5, and the detection surface of the radar ultrasonic detector is flush with the lower plane of the cabin cap 5. A waterproof rubber buffer ring is provided at the contact position between the cabin cap 5 and the radar ultrasonic detector 7.

[0078] Furthermore, the intelligent pyrolysis nanotubes 9, water leakage sensing contacts 8, LED status lights 10, temperature sensing detectors 6, geomagnetic sensors, and acoustic wave detectors in the chamber of the cylindrical boss of the middle cabin 4 all have independent installation spaces and are separated from each other by ribs 17.

[0079] The IPB intelligent sensing ball cabin is made of fireproof PC / ABS material, with a protection level of IP68. The working environment can be in a humidity range of 0-99% RH. The entire device is about 120mm in length and 42mm in diameter, and is relatively small in size.

[0080] The frustoconical sidewalls of the chamber cap are equipped with a temperature sensing chamber 11, an intelligent pyrolysis nanotube water inlet 13, and an intelligent pyrolysis nanotube mounting hole 14. The detection end of the temperature sensing detector 6 is located in the temperature sensing chamber to assist in determining the temperature around the pipe. The contact point of the water leakage sensing contact 8 is at least at the same height as the intelligent pyrolysis nanotube water inlet 13, and can trigger a water leakage alarm when water leaks through the water inlet. The intelligent pyrolysis nanotube mounting hole 14 is used to install or expose the intelligent pyrolysis nanotube 9. It can serve as a backup when the temperature suddenly changes or the temperature sensing detector 6 fails, eliminating the need for repeated replacement and extending the equipment's service life. The intelligent pyrolysis nanotube 9 will trigger a rupture alarm when the temperature is too high.

[0081] The LED status light 10 can also be observed through the installation hole or the water inlet hole to see whether it is on and the color, or the cabin cap can be made of a transparent material.

[0082] In this application, the IPB intelligent sensing ball cabin 1 is hoisted and installed, with the direction of the cabin body as the top and the direction of the cabin cap as the bottom. During hoisting and installation, the PCB mainboard is isolated from the cabin cap by the partition 23, and the main circuit will not be affected when water leakage occurs, and each sensor component is waterproof.

[0083] Furthermore, the energy supply cabin 12 is located between the cabin body and the middle cabin and in the inner cavity of the cabin body 3 .

[0084] Furthermore, the 4G antenna terminal 15 at the top 12 of the energy supply cabin is led out from the 4G antenna interface on the closed side of the cabin top as a signal interface for an external antenna, wherein the 4G antenna terminal 15 remains flush with the top of the cabin.

[0085] Furthermore, the PCB main board integrates a sensing chip (FPGA, which can integrate the sensing ends of various sensors), a communication module and a data transmission module, supports multiple communication protocols, and the sensing chip integrates a temperature sensing module, a water leakage sensing module, a leakage magnetic / geomagnetic sensing module, an ultrasonic detection sensing module, and a sound sensing module, which are electrically connected to the temperature sensing detector 6, the water leakage sensing contact 8, the geomagnetic sensor, the radar ultrasonic detector 7, and the sound wave detector respectively. Each sensing module corresponds to the sensing device one by one, which can realize the rapid docking, transmission and integrated processing of data, realize dedicated use of special areas, and reduce erroneous transmission. The data of the monitoring equipment obtained by the sensing chip is transmitted to the monitoring and early warning system platform 2 using the data transmission module and the communication module, which can monitor the leakage of the pipeline in real time and provide real-time feedback to the user end.

[0086] Furthermore, a storage unit is integrated on the PCB main board, so that the IPB intelligent sensing ball cabin has a certain data storage function, which can save 7 days of historical data. The data collection frequency is once every 20 minutes from 0 to 5 in the morning, and once every 1 hour at other times. The specific monitoring time can be adjusted according to the user side.

[0087] Furthermore, the IPB intelligent sensing spherical cabin can be installed on the wall close to the ground in different scenarios, such as inspection wells / valve wellheads, or hoisted into a hole drilled in the road surface (a circular hole with a diameter of 4.5 cm) within the range of 0.5 to 1.0 meters of a directly buried pipeline, and the antenna can be extended to the covering layer below the road surface (that is, the base layer below the road surface, which cannot hinder traffic and is also for the purpose of protecting equipment).

[0088] The system of the present invention comprises three layers: hardware, software, and services. The hardware includes IPB devices, data terminals, and servers; the software includes operating systems, databases, and applications (such as AutoNavi Maps and weather forecasts); and services include technical support and after-sales guarantees. Its main functions include real-time monitoring and early warning, historical data query and leak analysis, and map navigation. Users can view and process alarms in real time through mobile phone apps and PCs.

[0089] The monitoring and early warning system platform and the IBP intelligent sensing spherical cabin can achieve the following functional docking:

[0090] Real-time monitoring: The IPB intelligent sensing spherical cabin can monitor pipeline leakage in real time, including parameters such as leakage volume, temperature, and leakage location. The real-time monitoring data uploaded to the monitoring and early warning platform can be remotely monitored and warned through the platform;

[0091] Data analysis: The monitoring and early warning platform can store and analyze the data monitored by the IPB intelligent sensing spherical cabin to better understand the operating status and leakage of the pipeline;

[0092] Alarm Notification: When the IPB intelligent sensing pod detects a pipeline leak, it sends an alarm notification to the user through the monitoring and early warning platform, allowing the user to take timely measures for emergency repairs and treatment. The platform also offers historical data query and report printing capabilities.

[0093] Specifically, the distance between two adjacent IPB intelligent sensing capsules 1 should be controlled within the range of 15-20 meters.

[0094] Specifically, the model of the lithium battery in the energy supply cabin 12 can be INR18650-320, which has the characteristics of high energy density, high operating voltage and wide operating temperature range, and this type of battery is easy to disassemble and assemble.

[0095] Specifically, a positioning module is also provided on the PCB main board of the IPB intelligent sensing cabin 1. The monitoring and early warning system platform 2 identifies and locates the IPB intelligent sensing cabin 1, and enters the location information of the device and the status of the activated device (alarm, normal, offline) into the Gaode map, so that the user end can view the specific location and current status of the IPB in the pipeline network through the IPS.

[0096] Specifically, the map provided by the monitoring and early warning system platform 2 can display all the intelligent sensing cabin 1 sites, and the temperature value, water leakage and alarm information collected by each site can be viewed.

[0097] Example 1:

[0098] Urban municipal heating pipelines are generally buried 3 to 10 meters below the road. They are made of steel pipes, wrapped with a polyurethane insulation layer, and covered with a protective pipe outside the insulation layer. The hot water temperature in the steel pipe is around 1200°C, and the pressure inside the pipe is 1.2Mpa.

[0099] The process of using the intelligent sensing spherical cabin system for pipeline leakage detection in this embodiment to detect pipeline leakage is as follows:

[0100] A. Equipment installation and debugging

[0101] Step 1: Pre-install the IPB intelligent sensing ball cabin 1 and debug the IPB intelligent sensing ball cabin network. During the debugging period, the cabin cap can be left unlocked. The green indicator light (LED status light) of the IPB intelligent sensing ball cabin 1 flashes for 15 seconds, indicating that the working state is normal and the debugging is successful. After the debugging is successful, the cabin cap can be locked.

[0102] Step 2: Scenario installation mode: First, drill a hole at the location to be laid, and hoist a number of IPB intelligent sensing capsules 1 0.5 to 1 m above the buried pipeline. Install the IPB intelligent sensing capsule directly on the periphery of the pipeline for detection to avoid damage to the equipment caused by high temperature when installed inside the pipeline. Buried pipelines are generally located 3 to 10 m underground. The IPB intelligent sensing capsule is hoisted in the drill hole, and its 4G antenna is led to the inspection well mouth (generally, an inspection well is set up at intervals on buried pipelines to facilitate maintenance personnel) at a distance of 0.5 m from the road surface. The specific layout position can be adjusted according to the on-site conditions.

[0103] Step 3: Code and network all IPB intelligent sensing spherical cabin sites on the pipeline to be tested. Use the Beidou positioning system to mark the coordinates of the installed IPB intelligent sensing spherical cabin 1 and import it into Baidu Map / Amap. Then, connect it to the monitoring and early warning system platform, mobile phone APP, and user PC terminal.

[0104] Step 4: Data transmission verification, check whether the platform uploads data and upload frequency is normal, and verify each coded IPB intelligent sensing capsule 1 one by one. After debugging is completed, enter the normal intelligent monitoring link;

[0105] Step 5: The PCB mainboard of the IPB Intelligent Perception Sphere 1 collects relevant data around the pipeline in real time, including parameters such as water leakage, temperature, acoustic wave data, radar ultrasonic data, and geomagnetic induction data. When the IPB Intelligent Perception Sphere 1 detects a pipeline leak, it uploads the data to the monitoring and early warning system platform 2 via wireless transmission. When the leak temperature and noise are collected by both stations simultaneously, the system can locate the leak area based on correlation. The platform then sends an alarm notification to the user end, allowing the user to carry out emergency repairs and maintenance.

[0106] B. Early warning inspection

[0107] The intelligent sensing spherical cabin system for pipeline leakage detection in this embodiment performs leakage monitoring and early warning inspections based on temperature sensing (T), water leakage sensing (L), and ultrasonic detection (S). The specific method is as follows:

[0108] First, determine the probability of leakage according to the following rules:

[0109] (7) If T alarms and L alarms, the alarm level is red, the probability of leakage is 100%, and the pipeline is considered to be leaking;

[0110] (8) If T alarms and S alarms, the alarm level is red, the probability of leakage is 100%, and the pipeline is considered to be leaking;

[0111] (9) If T alarms and L does not alarm, the alarm level is orange and the probability of leakage is 75%;

[0112] (10) If T does not alarm and L alarms, the alarm level is yellow and the probability of leakage is 50%;

[0113] (11) If T does not alarm and S alarms, the alarm level is yellow and the probability of leakage is 50%;

[0114] (12) If T does not alarm and L does not alarm, the alarm level is green, the probability of leakage is 0%, and it is considered that no leakage has occurred.

[0115] For a certain number of sites with a leakage probability that is not 100%, geomagnetic induction data is used to predict whether there are suspected leak points in the pipeline. If the geomagnetic induction data determines that there is no suspected leak point at the site location, the leakage risk level of the corresponding site is downgraded. If the geomagnetic induction data determines that the location is a suspected leak point, the current leakage risk level is maintained.

[0116] After that, the acoustic sensing data is used to determine if there is a leak in the area where the leakage risk has been downgraded. If the acoustic sensing data determines that there is no leak, the leakage risk level of the corresponding site is downgraded again. If the acoustic sensing data determines that there is a leak, the leakage risk level determined by geomagnetic sensing is maintained as the leakage risk level of the current site.

[0117] Each downgrade is reduced by 25% according to the leakage probability. After the site leakage probability is determined, sites with a leakage probability of not less than 75% are given priority for early warning and on-site inspection. The greater the leakage probability, the earlier the inspection. After gradual judgment, the prediction accuracy of the leakage probability can be improved, the frequency of inspections can be significantly reduced, the efficiency of inspections can be improved, and the workload of inspections can be reduced.

[0118] In the above, a mutation or jump threshold is set. The T alarm means that the site collects the temperature values around the pipeline in real time and stores them in the platform's database. When the temperature sensor detects a jump or mutation in the temperature, it is determined that a pipeline leak has occurred; that is, the temperature change is monitored in real time. If the temperature change exceeds the mutation or jump threshold, a T alarm is issued, otherwise no temperature alarm is issued. For example, if the temperature value collected by a certain collection terminal fluctuates around 500°C and suddenly the temperature value rises by more than 80°C, it is considered that the hot water in the pipeline has leaked.

[0119] L alarm means that when a pipeline leaks, if the site is located in the pipeline leak area, when any contact of the leakage sensing contact 8 touches water, an L alarm will be issued, otherwise the leakage sensing will not alarm.

[0120] Set the liquid level change threshold. S alarm means that when a leak occurs in the pipeline, if the cumulative change △ of the liquid level measured by the radar ultrasonic detector is greater than the liquid level change threshold of 15cm, the S alarm will be issued. Otherwise, the ultrasonic detection will not alarm.

[0121] Radar ultrasonic detectors are required to collect data once a day to ensure the service life of the product and the timeliness of the data.

[0122] A threshold for changes in geomagnetic field intensity is set. Geomagnetic induction G senses pipeline corrosion caused by local temperature difference stress due to uneven heat dissipation of the pipe wall, and judges pipeline corrosion and leakage points based on slight temperature differences and slight magnetic field changes. If the change in geomagnetic field intensity exceeds the threshold for changes in geomagnetic field intensity, the area exceeding the threshold for changes in geomagnetic field intensity is identified as an abnormal area, and the location of possible leakage points is predicted to determine whether there are suspected leakage points in the pipeline.

[0123] Sound sensing (M): The sonic detector collects noise in the pipeline to analyze whether there is a leak. The specific judgment process is existing technology.

[0124] The above parameters such as the liquid level change threshold, mutation or jump threshold, and geomagnetic field intensity change threshold can be adjusted in real time according to the actual situation on site and can be changed according to the user side.

[0125] The water leakage sensor (L) is sensed by the two contact ends of the water leakage sensing contact 8, and an alarm prompt is generated when any one of the contact ends is triggered.

[0126] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with this technical field within the technical scope disclosed by the present invention and within the spirit and principles of the present invention should be covered by the scope of protection of the present invention.

[0127] Any matters not described in the present invention are applicable to the prior art.

Claims

1. An intelligent sensing pod system for pipeline leak detection, comprising several IPB intelligent sensing pods, a monitoring and early warning system platform, and a user terminal. The IPB intelligent sensing pods communicate with the monitoring and early warning system platform; the monitoring and early warning system platform communicates with the user terminal. The system is characterized by: The IPB intelligent sensing spherical cabin consists of a cabin body, a middle cabin and a cabin cap from top to bottom. The cabin body is threadedly connected to the middle cabin, and the middle cabin and the cabin cap are combined together. An energy supply cabin is encapsulated between the cabin body and the middle cabin. The antenna in the energy supply cabin extends out of the cabin body and is connected to the monitoring and early warning system platform. A partition is provided in the middle cabin, which divides the middle cabin into an upper and lower part. A PCB mainboard is provided in the chamber of the upper part of the middle cabin. The upper part of the middle cabin is adapted to the internal thread of the cabin body through an external thread. A temperature sensor detector, an intelligent pyrolysis nanotube, an LED status light, a geomagnetic sensor, and an acoustic wave detector are installed in the chamber of the lower part of the middle cabin. A radar ultrasonic detector is installed at the lower end of the middle cabin. When the cover is closed, the radar ultrasonic detector is located inside the cabin cap. One end of the water leakage sensing contact is mounted on the energy supply cabin, and the other end extends through the partition into the chamber of the lower portion; The cabin cap is snap-fitted to the middle cabin, encapsulating the lower portion of the middle cabin in the cabin cap; a temperature sensing compartment, a water inlet for the intelligent pyrolysis nanotubes, and an installation hole for the intelligent pyrolysis nanotubes are provided on the side wall of the cabin cap. The contact point of the water leakage sensing contact is not lower than the height of the water inlet hole of the intelligent pyrolysis nanotube; the detection end of the temperature sensing detector is located in the temperature sensing cabin; a waterproof buffer ring is provided at the contact position between the cabin cap and the radar ultrasonic detector; The process of using the intelligent sensing ball cabin system for pipeline leak detection is: A. Equipment installation and debugging Step 1: Pre-install the IPB intelligent sensing ball cabin and debug the IPB intelligent sensing ball cabin network. The debugging is considered successful when the green light of the LED status light of the IPB intelligent sensing ball cabin flashes for a set time. Step 2: Scenario installation mode: First, drill holes at the location to be laid, hoist a number of IPB intelligent sensing pods 0.5 to 1 meter above the buried pipeline, and guide the antenna to the vicinity of the inspection well mouth; Step 3: Code and network all IPB intelligent sensing spherical cabin sites on the pipeline to be tested. Use the Beidou positioning system to mark the coordinates of the installed IPB intelligent sensing spherical cabins, import them into Baidu Maps or Amap, and connect them to the monitoring and early warning system platform and user terminal. Step 4: Data transmission verification, check whether the platform uploads data and upload frequency is normal, and verify each coded IPB intelligent sensing capsule one by one. After debugging is completed, enter the normal intelligent monitoring link; Step 5: The PCB mainboard of the IPB intelligent sensing sphere collects relevant data around the pipeline in real time, including water leakage, temperature, acoustic wave data, radar ultrasonic data, and geomagnetic induction data parameters; when the IPB intelligent sensing sphere detects a pipeline leak, it uploads the data to the monitoring and early warning system platform via wireless transmission; B. Early warning inspection Water leakage monitoring and early warning inspection is carried out based on temperature sensing T, water leakage sensing L and ultrasonic detection S. The specific process is as follows: First, determine the probability of leakage according to the following rules: (1) If T alarms and L alarms, the alarm level is red, the probability of leakage is 100%, and the pipeline is considered to be leaking; (2) If T alarms and S alarms, the alarm level is red, the probability of leakage is 100%, and the pipeline is considered to be leaking; (3) If T alarms and L does not alarm, the alarm level is orange and the probability of leakage is 75%; (4) If T does not alarm and L alarms, the alarm level is yellow and the probability of leakage is 50%; (5) If T does not alarm and S alarms, the alarm level is yellow and the probability of leakage is 50%; (6) If T does not alarm and L does not alarm, the alarm level is green, the probability of leakage is 0%, and it is considered that no leakage has occurred; For a certain number of sites with a leakage probability that is not 100%, geomagnetic induction data is used to predict whether there are suspected leak points in the pipeline. If the geomagnetic induction data determines that there is no suspected leak point at the site location, the leakage risk level of the corresponding site is downgraded. If the geomagnetic induction data determines that the location is a suspected leak point, the current leakage risk level is maintained. After that, the acoustic sensing data is used to determine if there is a leak in the area where the leakage risk has been downgraded. If the acoustic sensing data determines that there is no leak, the leakage risk level of the corresponding site is downgraded again. If the acoustic sensing data determines that there is a leak, the leakage risk level determined by geomagnetic sensing is maintained as the leakage risk level of the current site. Each downgrade is reduced by 25% according to the leakage probability. After the site leakage probability is determined, priority will be given to early warning and on-site inspection for sites with a leakage probability of not less than 75%.

2. The intelligent sensing spherical cabin system for pipeline leakage detection according to claim 1 is characterized in that: The PCB mainboard integrates a sensing chip, a data transmission module, and a storage unit; the sensing chip includes a temperature sensing module, a water leakage sensing module, a leakage magnetic / geomagnetic sensing module, an ultrasonic detection sensing module, and a sound sensing module, which are electrically connected to the temperature sensing detector, the water leakage sensing contact, the geomagnetic sensor, the radar ultrasonic detector, and the sound wave detector respectively; the sensing chip transmits data to the monitoring and early warning system platform and the storage unit through the data transmission module, and the user end includes a mobile phone APP and a user PC end, and the user end communicates with the monitoring and early warning system platform.

3. The intelligent sensing spherical cabin system for pipeline leakage detection according to claim 1 is characterized in that: L alarm means that when a pipeline leaks, if the station is located in the pipeline leak area, when any of the water leakage sensing contacts touches water, an L alarm will be issued, otherwise no L alarm will be issued; Set the liquid level change threshold. S alarm means that when a leak occurs in the pipeline, if the cumulative change △ of the liquid level measured by the radar ultrasonic detector is greater than the liquid level change threshold, S alarm will be issued, otherwise S will not alarm; A threshold for changes in geomagnetic field intensity is set. Geomagnetic induction senses pipeline corrosion caused by local temperature difference stress due to uneven heat dissipation of the pipe wall. If the geomagnetic field intensity change exceeds the threshold, the area exceeding the threshold is identified as an abnormal area, and the location of possible leakage points is predicted to determine whether there are suspected leakage points in the pipeline.

4. An IPB intelligent sensing ball cabin, characterized in that: The IPB intelligent sensing spherical cabin is used for buried pipeline leakage detection. The IPB intelligent sensing spherical cabin consists of a cabin body, a middle cabin and a cabin cap from top to bottom. The cabin body is threadedly connected to the middle cabin, and the middle cabin and the cabin cap are covered together. An energy supply cabin is encapsulated between the cabin body and the middle cabin. The antenna in the energy supply cabin extends out of the cabin body and is connected to the outside. A partition is provided in the middle cabin, which divides the middle cabin into an upper and lower part. The lower part is in the form of a cylindrical boss, and a chamber is provided inside the cylindrical boss. A PCB mainboard is provided inside the chamber of the upper part of the middle cabin. The upper part of the middle cabin is adapted to the internal thread of the cabin body through an external thread. A temperature sensor detector, an intelligent pyrolysis nanotube, an LED status light, a geomagnetic sensor, and an acoustic wave detector are installed in the chamber of the lower part of the middle cabin. A radar ultrasonic detector is installed at the lower end of the cylindrical boss. When the cover is closed, the radar ultrasonic detector is located inside the cabin cap. One end of the water leakage sensing contact is mounted on the energy supply cabin, and the other end thereof extends through the partition into the cavity of the cylindrical boss of the lower portion; The cabin cap is snap-fitted to the middle cabin, encapsulating the lower portion of the middle cabin in the cabin cap; a temperature sensing compartment, a water inlet for the intelligent pyrolysis nanotubes, and an installation hole for the intelligent pyrolysis nanotubes are provided on the side wall of the cabin cap. The contact point of the water leakage sensing contact is not lower than the height of the water inlet hole of the intelligent thermal cracking nanotube; the detection end of the temperature sensing detector is located in the temperature sensing cabin; a waterproof buffer ring is provided at the contact position between the cabin cap and the radar ultrasonic detector.

5. The IPB intelligent sensing ball cabin according to claim 4, characterized in that: The IPB intelligent sensing ball cabin is capsule-shaped, with a length of 100-150mm and a diameter of 40-45mm.

6. The IPB intelligent sensing ball cabin according to claim 4, characterized in that: The cabin is cylindrical, with a closed upper end and an open lower end. The cabin is provided with an internal thread on one side of the open end, and a wiring hole with a diameter of 1 cm is provided at the center position of one side of the closed end for connecting an external antenna. The inner surface of the cabin is provided with a slide rail along its length. The energy supply module cooperates with the slide rails of the module body so that the energy supply module can be slidably connected to the module body. The energy supply cabin is composed of an upper U-shaped structure and a lower cylindrical structure as a whole. The outer surface of the upper U-shaped structure is provided with a card slot. The lower layer is a cylindrical structure with one end closed and the closed end of the cylinder is connected to the U-shaped structure. The lower layer is a disc-shaped structure with one end closed and the end plate of the disc-shaped structure is fixed together with the side of the disc-shaped structure through a circular stepped card slot, thereby providing support for the equipment inside the U-shaped structure. The U-shaped structure of the energy supply cabin has a cavity, and a lithium battery pack is placed in the cavity. The lithium battery pack has a battery capacity of 3200mAh and outputs a voltage of 3.6 volts to provide power supply for the entire equipment; a 4G antenna terminal is provided on the top of the U-shaped structure of the energy supply cabin.

7. The IPB intelligent sensing ball cabin according to claim 4, characterized in that: The cabin cap is in the shape of a truncated cone, with a larger upper part and a smaller lower part. The IPB intelligent sensing ball cabin is made of fire-proof PC / ABS material.

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