Beijing Botek Machinery Co., Ltd.
SRS railway subgrade safety system
Working principle
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 and wide-band short-pulse electromagnetic waves into the railway subgrade. The electromagnetic waves propagate in the medium. When encountering electrical interfaces with different dielectric properties, the 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 when it meets the electrical interface again, it is reflected and transmitted, so that the radar antenna continuously receives the underground reflected signal to form a radar data, and when the system moves along the line, it forms a radar detection profile. By calculating the two-way travel time, amplitude, frequency spectrum, instantaneous power spectrum, phase displacement and other characteristic values of electromagnetic waves in the medium, the structural depth, ballast pollution degree and subgrade water content can be judged.
system composition, basis of instrument qualification standard and self-evaluation of 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-coupled detection antennas, signal transmission cable, signal real-time display system, mobile locomotive, system support system, environmental 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 direct the Doppler system to work. The Doppler system starts 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 GPS position the surrounding environment of the detected object.
The software in this system is a revolution of the software in the GPR industry, which basically realizes the automatic processing, analysis and interpretation of radar data. Combined with the characteristics of railway subgrade structure, the software classifies and sorts out the signals displayed in the ground penetrating radar map of the diseases of railway subgrade ballast layer, and the software can automatically analyze and explain the diseases of ballast layer. 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, mud boiling and so on, 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, and the normal operation of the line will not be affected at all. Later analysis software can also automatically complete the analysis of a large number of data, which greatly improves the work efficiency.
Compilation and monograph of geophysical instruments
Parameters of p>SRS main engine system
Automatic generation of radar chart analysis results
Automatic generation of ballast layer statistics and interpretation results
Application fields and examples
At present, china academy of railway sciences has completed a large number of railway subgrade detection tasks using this equipment, which provides a reference for the Ministry of Railways to accurately grasp the safety status of railway subgrade.
Qinghai-Tibet railway detection
Tianjin railway detection
Beijing-Kowloon railway detection
Hanji railway detection
beijing-harbin railway branch railway detection
Simple background information, after-sales and commitment of products
At present, SRS railway subgrade safety system has been widely recognized by the Ministry of Railways, providing a good barrier for subgrade safety problems in existing lines. At present, based on the existing hardware and software of the system, Botek Company has been committed to the localization of the system, and with the assistance of china academy of railway sciences, the problems in the system are constantly tested and adjusted, so that the system can be more suitable for the national conditions of China and the needs of users in China.
Italian FastWave ground penetrating radar
basic principle
ground penetrating radar is an electromagnetic detection technology that uses high-frequency electromagnetic waves with a central frequency of 1 ~ 2,5 MHz to detect structures and features in underground or buildings. Usually, the electromagnetic pulse wave with a certain central frequency is emitted into the underground medium by the transmitting antenna. When the electromagnetic pulse wave propagates in the underground medium, it will be reflected when it meets the interface with electromagnetic difference in the medium and sent back to the ground to be received by the receiving antenna. The radar reflection profile is obtained by moving antennas at equal intervals along the survey line point by point, and the spatial position, structure, electrical property and geometric shape 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 its main advantages and disadvantages
IDS Company of Italy has initiated a revolution in high-resolution and high-speed radar technology due to the patented antenna array technology. IDS has become one of the most technologically advanced ground penetrating radar manufacturers in the world, with an annual production of about 4 sets of radars and a delivery time of only 45 days. Hosts, antennas and processing software independently developed and produced are in the leading position in the world. The FastWave control unit is light and convenient, and can be connected with up to 16 pairs of single antennas for simultaneous measurement, with extremely high emission rate and scanning speed. The antenna frequency is complete, including all kinds of unshielded antennas from 25 to 25 MHz, ground and air-coupled shielded antennas, and borehole antennas. The antenna frequency band is wide, the signal stability is strong, and the resolution and sensitivity are high. Unique waterproof, dustproof and explosion-proof design can adapt to underground and various harsh working environments. Time, measuring wheel, measuring box and GPS make the measurement and positioning more accurate. It also has the world's 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 index
the software in this 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.
application fields and application examples
Italian FastWave ground penetrating radar has many application fields, which are mainly used in underground building exploration, pavement defect detection, foundation pile foundation detection and various metal and nonmetal pipeline detection in municipal facilities and pipeline detection. In the aspect of construction engineering quality inspection, it is used for building internal structure inspection, steel bar distribution positioning and protective layer thickness inspection, building internal defects detection, etc. Road detection is mainly used for the evaluation and detection of the thickness and quality of each layer of subgrade, the detection of subgrade subsidence, water-bearing 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 to detect hidden dangers such as water-bearing areas, structures and breakage; In geological and hydrological exploration, it is used for stratum profile, fracture, foundation, bedrock and hydrogeological analysis, and stratum analysis inside cavities and boreholes. In environmental detection, it is used for rapid detection of groundwater monitoring, oil tanks, gas stations, pipeline leakage and landfill leakage; In addition, it is also used for archaeological research on nondestructive testing of ancient sites, empty drum area of murals, ancient building structure and weathering degree, as well as detection of underground air-raid shelters, hidden objects or unexploded ordnance and other military security fields. RIS radar stands out from many competing products of ground penetrating radar because of its excellent performance. At 11: 8 am on May 22nd, 25, with the China expedition team climbing Mount Everest, the height of Mount Everest was measured. Under the harsh conditions of -5℃, the thickness of ice and snow cover was successfully measured, and the latest height of Mount Everest was determined to be 8844m.
Everest ice detection
Tiananmen Foundation detection
Expressway detection
Danube River bed detection
Guiyang-Guangzhou high-speed railway tunnel advance forecast
Geological exploration detection
Four-story steel bar detection radar map
Three-dimensional model map
CAD p>IDS network map directly generated by software
Simple background information, after-sales and commitments of products or suppliers. Especially since entering China, Beijing Botek Machinery Co., Ltd. specializes in Italian ground penetrating radar product sales, technical promotion and support, after-sales service, equipment maintenance, and is responsible for comprehensive, systematic and in-depth training of instrument users. It is widely praised for its strong technical force, advanced products and first-class services. 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 for free. Responsible for a free comprehensive inspection of instruments and equipment within one month before the expiration of the free warranty period, 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
working principle
IBIS is an advanced remote radar monitoring system (ibis–s and ibis–l) based on microwave interference technology, which accurately measures the radial displacement change of the target at different times through the phase difference of radar reflected waves to complete dynamic and static monitoring. IBIS-S remote monitoring system for building micro-change combines interferometry and stepped-frequency continuous wave technology. The system emits a group of electromagnetic waves at different frequencies in the time of Tsweep, ensures the long-distance transmission of electromagnetic waves through stepped-frequency continuous wave technology, and measures the phase difference of radar reflected waves through interferometry technology. IBIS-L remote monitoring system for terrain micro-change is a combination of synthetic aperture radar technology, stepped frequency continuous wave and interferometry technology, among which synthetic aperture radar 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 synthetic aperture radar.
Self-evaluation of the company's production capacity, system composition, the basis of instrument qualification standards and its main advantages and disadvantages
IBIS system was successfully developed by IDS of Italy and the University of Florence after six years of cooperation, and was produced by IDS company, with an annual production of about 1 sets. The system consists of data acquisition unit, linear scanning unit (or tripod), energy supply unit and data recording and processing unit. The radar wave frequency is 16.6~16.9GHz, and the antenna with 2dB gain has high measurement accuracy and high spatial resolution. It has a high degree of automation. 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, and there is no need to install sensors in the target area, to get close to or enter the target object, and to wait for operators on the spot; 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 indicators of p>IBIS remote radar monitoring system
application fields and application 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, and integrates dynamic and static monitoring, which can realize dynamic deflection and static deflection measurement of bridges, vibration frequency monitoring of bridges, residual variable measurement of bridges and modal analysis. Monitoring the deformation and settlement of buildings, monitoring the deformation of high-rise buildings and modal analysis; Vibration analysis and settlement monitoring of high tower. IBIS-L mainly integrates the displacement monitoring of dams, slope projects, reservoir areas and other hydraulic structures and surfaces, and can detect the stability of dams and give disaster warning. Monitoring and early warning of mountain surface changes, unstable slopes, landslides, landslides and volcanoes.
Nanjing Yangtze River Second Bridge
Tiananmen Gate
Beijing-Tianjin high-speed rail Yangcun Bridge
baoji-chengdu railway Qingjiang No.2 Bridge
Zipingpu Dam
Longtoushi Dam
Landslide monitoring
Open pit monitoring
This non-contact method can monitor the deformation of the target at a long distance with high precision, and the extremely high sampling frequency can vibrate the bridge. In the process of deformation monitoring of slope or dam, this method can provide the motion mechanism and characteristics of dam or slope, which is convenient for analyzing and explaining the kinematic characteristics of the whole monitoring area.
Compilation and Monograph of Geophysical Instruments
In slope monitoring, the data can be analyzed in three-dimensional form, and the obtained data pattern is more intuitive. The fast and automatic monitoring mode enables the system to work automatically without being guarded, and transmit data to the duty room through the network, so as to achieve real online monitoring.
product popularity, simple background information of production or supplier, after-sale and commitment
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 a good effect on solving large-scale slope early warning and disaster monitoring.
As the general agent of Italian IDS company in China, Botek Company has been committed to the promotion of IBIS system in China, trying to make the equipment solve more and more complicated practical problems in China. The company's technicians can provide corresponding treatment plans according to the actual situation of customers and adopt 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.