Botek Italian ground penetrating radar
Safety system of SRS railway subgrade
principle of operation
SRS railway subgrade safety system is a high-speed railway detection system based on ground penetrating radar system. Railway subgrade detection is based on the propagation law of electromagnetic waves in lossy media. The antenna emits high-frequency broadband short-pulse electromagnetic waves into the railway subgrade. Electromagnetic wave propagates in medium. When encountering electrical interfaces with different dielectric properties, electromagnetic waves are reflected and transmitted, and the reflected electromagnetic waves are received by the receiving antenna. The transmitted wave continues to propagate downward, and it is reflected and transmitted when it meets the electrical interface again, so that the radar antenna continuously receives the underground reflected signal to form a radar data, and a radar detection profile is formed when the system moves along the line. By calculating the two-way propagation time, amplitude, frequency spectrum, instantaneous power spectrum and phase shift of electromagnetic waves in the medium, the structural depth, ballast pollution degree and subgrade water content can be judged.
Self-evaluation of system composition, basis of instrument qualification standard and its main advantages and disadvantages.
SRS railway subgrade safety system consists of signal acquisition system and data processing system, in which the signal acquisition system consists of Doppler speed sleeper identification system, Doppler signal transmission cable, Doppler signal controller, central control system, three air coupling detection antennas, signal transmission cable, signal real-time display system, mobile locomotive, system support system, environment recording system and GPS precise positioning system. After the system is started, the central control system sends a signal to the Doppler control system to instruct the Doppler system to work. The Doppler system begins to identify sleepers and detect the distance, and feeds back the signal to the central control system. After receiving the feedback signal, the central control system sends the required pulse signal to the antenna and receives the signal reflected from the underground. The display system can display the detected signal in real time, and at the same time record and locate the surrounding environment of the detected object by GPS.
The software in the system is a revolution in the software of ground penetrating radar industry, which basically realizes the automatic processing, analysis and interpretation of radar data. Combined with the structural characteristics of railway subgrade, the software classifies and sorts the signals displayed in the GPR map of railway subgrade ballast layer diseases, and the software can automatically analyze and explain the ballast layer diseases. At present, the software can automatically track the thickness of each layer in the ballast layer, and automatically explain the diseases such as stolen goods, high water content, ballast bags and frost boiling, and automatically count and evaluate the railway subgrade within the detection range.
Through this system, a wide range of railway subgrade detection can be completed at a faster speed without affecting the normal operation of the line at all. Post-analysis software can also automatically complete the analysis of a large number of data, greatly improving the work efficiency.
Compilation and monograph of geophysical instruments
SRS host system parameters
Automatic generation of radar chart analysis results
Statistics and interpretation results of automatic generation of ballast layer
Usage areas and usage examples
At present, china academy of railway sciences has completed a large number of railway subgrade detection tasks by using this equipment, which provides a reference for the Ministry of Railways to accurately grasp the safety status of railway subgrade.
Qinghai-Tibet railway exploration
Tianjin railway inspection
Beijing-Kowloon Railway Detection
Han Ji Railway Inspection
Beijing-harbin railway detection
Branch railway detection
Product awareness, simple production or supplier background information, after-sales and commitment.
At present, SRS railway subgrade safety system has been widely recognized by the Ministry of Railways, which provides a good barrier for the safety of existing railway subgrade. At present, Botek Company has been committed to the localization of the system on the basis of the existing hardware and software of the system, and with the assistance of china academy of railway sciences, it constantly tests and adjusts the problems existing in the system, making the system more suitable for the national conditions of China and the needs of users in China.
Italian fast wave ground penetrating radar
fundamental principle
Ground penetrating radar (GPR) is an electromagnetic detection technology, which uses high-frequency electromagnetic waves with the central frequency of 10 ~ 2500 MHz to detect structures and objects in underground or buildings. Usually, the electromagnetic pulse wave with a certain central frequency is emitted to the underground medium by the transmitting antenna. When the electromagnetic pulse wave propagates in the underground medium, it will be reflected back to the ground and received by the receiving antenna when it meets the interface with electromagnetic difference in the medium. The radar reflection profile is obtained by moving the antenna at equal intervals point by point along the survey line, and the spatial position, structure, electricity and geometry of underground targets are inferred according to the amplitude, phase and travel time of the received radar waves, so as to detect underground hidden targets.
Self-evaluation of the company's production capacity, system composition, instrument qualification standards and their main advantages and disadvantages.
IDS Company of Italy has patented antenna array technology, which has triggered a revolution in high-resolution and high-speed radar technology. IDS has become one of the most technologically advanced GPR manufacturers in the world, with an annual output of about 400 sets of radars and a delivery time of only 45 days. The mainframe, antenna and processing software independently developed and produced are in the leading position in the world. The FastWave control unit is light, and can connect 16 pairs of single antennas for simultaneous measurement, with extremely high emissivity and scanning speed. The antenna frequency is complete, including various unshielded antennas at 25-2500 MHz, ground and air coupled shielded antennas, and drilled antennas. Wide antenna frequency band, strong signal stability, high resolution and sensitivity. Unique waterproof, dustproof and explosion-proof design can adapt to underground and various harsh working environments. Time, measuring wheel, measuring box and GPS make measurement and positioning more accurate. It also has world-advanced patented antenna arrays such as MF, HIRESS, ALADDIN and TR-AL air coupling, which can complete deep and shallow detection at the same time with faster speed and higher resolution, greatly improving the detection accuracy and work efficiency. The FastWave host is compatible with IDS antennas and antenna arrays of all frequencies, and can be flexibly configured according to requirements.
FastWave technical indicators
The software in the system is a revolution in the software of ground penetrating radar industry, which basically realizes the automatic processing, analysis and interpretation of radar data. In order to make the results more clear and intuitive, the GPR software of the system can not only combine the target data into a three-dimensional model, but also get the final data in CAD form.
Usage areas and usage examples
Italy's FastWave ground penetrating radar is widely used, which is mainly used for underground building exploration, pavement defect detection, foundation pile foundation detection and various metal and nonmetal pipelines detection in municipal facilities and pipelines detection. In the aspect of building engineering quality inspection, it is used to detect the internal structure of buildings, the distribution and positioning of steel bars, the thickness of protective layers, and the internal defects of buildings. Highway inspection is mainly used for the evaluation and detection of the thickness and quality of each layer of subgrade, the detection of subgrade subsidence, waterlogged areas, holes and other diseases, as well as the detection of railway and highway bridge structures, the detection of tunnel lining thickness and various defects, and can also be used for the advanced prediction of tunnels and the detection of hidden dangers such as waterlogged areas, structures and damages. In geological and hydrological exploration, it is used for stratum profile, fault, foundation, bedrock and hydrogeological analysis, as well as stratum analysis in caves and boreholes. In environmental detection, it is used for rapid detection of groundwater monitoring, oil tank, gas station, pipeline leakage and landfill leakage; In addition, it is also used in nondestructive testing of ancient sites, archaeological research on the hollowed-out area of murals, the structure and weathering degree of ancient buildings, and military security fields such as detecting underground air-raid shelters, hidden objects or unexploded ordnance. RIS radar stands out among many competitive products of ground penetrating radar for its excellent performance. On the morning of May 22nd, 2005, at 1 1: 08, I climbed Mount Qomolangma, the world's highest peak, with the expedition team from China, and carried out the task of measuring the height of Mount Qomolangma. Under the harsh conditions of -50℃, I successfully measured the thickness of ice and snow cover, and determined that the latest height of Mount Qomolangma was 8844m.
Ice detection of Mount Everest
Foundation detection of Tiananmen Square
Highway detection
Detection of danube river bed
Advanced Forecast of Guiguang High-speed Railway Tunnel
Geological exploration and detection
Four-layer steel bar detection radar chart
Three-dimensional model diagram
CAD pipe network diagram directly generated by software
Product awareness, simple production or supplier background information, after-sales and commitment.
IDS FastWave GPR users have spread all over Asia, Europe, Oceania, South America and Africa. Especially since entering China, Beijing Botek Machinery Co., Ltd. specializes in Italian ground penetrating radar product sales, technology promotion and support, after-sales service and equipment maintenance, and is responsible for comprehensive, systematic and in-depth training for instrument users. It is widely praised for its strong technical force, advanced products and first-class service. At present, it has hundreds of users including the Ministry of Railways, the Ministry of Communications, the Ministry of Construction, the State Bureau of Surveying and Mapping, national and local environmental protection departments, universities and scientific research institutions, municipal departments and survey institutes. This series of products enjoy lifelong maintenance, and the maintenance response time is short. If the instrument fails during the warranty period under normal use, it can be repaired and replaced free of charge. Responsible for a free comprehensive inspection of instruments and equipment before the expiration of the free warranty period 1 month, and provide free on-site inspection service twice a year. Provide free upgrade service of corresponding software for life.
IBIS remote micro radar monitoring system
principle of operation
IBIS is an advanced remote radar monitoring system (ibis–s and ibis–l) based on microwave jamming technology. It accurately measures the radial displacement change of the target at different times through the phase difference of radar reflected waves, and completes dynamic and static monitoring. IBIS-S remote monitoring system for building micro-changes combines interferometry and stepped frequency continuous wave technology. The system emits a group of electromagnetic waves with different frequencies in Tsweep time, and the long-distance transmission of electromagnetic waves is ensured by step-frequency continuous wave technology, and the phase difference of radar reflected waves is measured by interferometric technology. IBIS-L remote monitoring system for topographic micro-changes is a combination of synthetic aperture radar (SAR) technology, stepped frequency continuous wave and interferometry technology. SAR technology is a new space observation technology, which is equivalent to increasing the aperture of the antenna when it scans linearly along the track, and extracting the three-dimensional and elevation change information of the ground surface by using the phase information of SAR.
Self-evaluation of the company's production capacity, system composition, instrument qualification standards and their main advantages and disadvantages.
The IBIS system was successfully developed by IDS of Italy and the University of Florence after six years of cooperation, and was produced by IDS, with an annual output of about 65,438+000 sets. The system consists of data acquisition unit, line scanning unit (or tripod), energy supply unit and data recording and processing unit. The radar wave frequency is 16.6~ 16.9GHz, the antenna gain is 20dB, and the measurement accuracy and spatial resolution are high. It is highly automated. Set the area to be monitored in the control software, select the monitoring time, and automatically, continuously and comprehensively complete the dynamic or static monitoring of the target. Remote telemetry can be realized without installing sensors in the target area, approaching or entering the target object, and without waiting for operators at the scene; Through direct real-time monitoring, the information of a single pixel is analyzed, so as to obtain the deformation or local displacement of the whole target; The system has strong stability and anti-interference ability, and can still provide 24-hour continuous data acquisition under severe weather conditions such as wind, rain and fog. Transportation and installation are simple and convenient.
Technical index of IBIS long-range radar monitoring system
Usage areas and usage examples
The system has a wide range of applications, such as bridge detection, building monitoring, dam monitoring, landslide monitoring, unstable slope monitoring, terrain or surface subsidence monitoring and avalanche volcano monitoring. Ibis–S is mainly used for real-time monitoring of bridges or high-rise buildings, integrating dynamic and static monitoring, and can realize dynamic deflection and static deflection measurement of bridges, vibration frequency monitoring of bridges, residual variable measurement of bridges and modal analysis. Monitor the deformation and settlement of buildings, and monitor the deformation and modal analysis of high-rise buildings; Vibration analysis and settlement monitoring of high tower. IBIS-L mainly integrates the displacement monitoring of hydraulic structures and water surface such as dams, slope projects and reservoir areas, which can detect the stability of dams and give disaster warning. Monitoring and early warning of mountain surface changes, unstable slopes, landslides, landslides and volcanoes.
The Second Nanjing Yangtze River Bridge
Tian'anmen Gate Tower
Beijing-Tianjin high-speed rail Yangcun bridge
Baoji-chengdu railway Qingjiang Bridge 2
Zipingpu dam
Longtoushi dam
Landslide monitoring
Open pit mine monitoring
Using this non-contact method, the deformation of the target can be monitored remotely and accurately, and the vibration of the bridge can be analyzed at a very high sampling frequency. In the process of deformation monitoring of slope or dam, this method can provide the motion mechanism and characteristics of dam or slope, and it is convenient to analyze and explain the kinematic characteristics of the whole monitoring area.
Compilation and monograph of geophysical instruments
In slope monitoring, the data can be analyzed in three dimensions, and the obtained data model is more intuitive. The fast automatic monitoring mode enables the system to work automatically under unattended conditions, and transmits data to the duty room through the network to realize real online monitoring.
Product awareness, simple production or supplier background information, after-sales and commitment.
The Italian micro-deformation remote monitoring system (IBIS system) is the latest product developed by IDS company in Italy, which is widely used in Europe at present, and has achieved good results in solving large-scale slope early warning and disaster monitoring.
Botek, as the general agent of Italian IDS company in China, has been committed to the promotion of IBIS system in China, trying to make the equipment solve the increasingly complex practical problems in China. The company's technicians can provide corresponding treatment plans according to the actual situation of customers and use corresponding equipment for treatment. The company provides lifelong service for the equipment sold, and cooperates with lifelong technical support and equipment service to ensure that users can get the most advanced equipment and the best service in the world with the least money.