CN201990996U - Cable-less type static-sounding instrument - Google Patents

Abstract

The utility model discloses a cableless static sounding instrument, which comprises an underground static sounding data acquisition card, a static sounding data host computer management system and an aboveground static sounding data acquisition instrument; an underground static sounding The data acquisition card includes a microcontroller 1, an analog signal processing module 1, a synchronous clock module 1, a data storage module 1, a data communication module 1, and a power supply module 1, and the analog signal processing module 1 is connected with the static penetration probe; The static penetration data acquisition instrument includes a microcontroller II, a photoelectric encoder, a synchronous clock module II, a data storage module II, an operation button module, a liquid crystal display module, a data communication module II, a data communication module III, and a power supply module II. The utility model has the advantages of simple structure, reasonable design, convenient use and operation, large data storage capacity, long storage time, long continuous working time, high reliability, high work efficiency, good use effect, and is convenient for popularization and use.

Description

Cableless Static Penetration Sounder

technical field

The utility model belongs to the technical field of engineering geological survey, in particular to a cableless static penetrometer.

Background technique

Static sounding is an in-situ test method in engineering geological survey, which is suitable for soft soil, general clay, silt and sandy soil. In areas with many soft soils, static sounding can improve The reliability of survey results.

At present, the static penetrometers used in China mainly use cables to transmit pressure signals and depth signals. Due to the widespread use of computers, the static penetration test can input standard programs into the static penetration data acquisition system through the computer to control the static penetration test process, thereby obtaining rapid and accurate results. However, during the static penetration test, there is a lot of inconvenience in connecting the probe to the cable. When connecting the probe rods, several personnel are often required to cooperate to add the probe rods one by one. It is easy to be accidentally damaged, and the operator needs to carry a personal computer to carry out on-site control and data processing operations of data collection. Therefore, it is greatly affected by environmental conditions, and it is not conducive to the smooth development of the test in the harsh field.

In view of the unfavorable influence of cables on operation, a very small number of manufacturers at home and abroad have developed a cableless automatic static penetration system using different technologies. There are mainly two transmission methods: radio transmission and optical transmission. Although these two transmission methods solve the inconvenience of the cable method very well, their disadvantages are also obvious, which are mainly reflected in the following two points: First, due to the unpredictability of the underground environment, radio and light transmission will change in different environments , so that the signals transmitted to the ground through these two methods are severely interfered, and the measurement results have large deviations; secondly, the convenience of these two methods also greatly increases the cost of the system. Due to these unfavorable factors, although it solves the inconvenience of traditional data collection, its popularization and application are still difficult, and few of them are used in China.

It can be seen from the above that the current domestic and foreign researches on static CPT can not meet the actual needs well.

Utility model content

The technical problem to be solved by the utility model is to provide a cableless static penetrometer with simple structure, reasonable design, convenient use and operation, large data storage capacity and long storage time, aiming at the deficiencies in the above-mentioned prior art. The utility model has the advantages of high reliability, high work efficiency, high practical value, good use effect and convenient popularization and use.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a cableless static penetration sounder, which is characterized in that it includes a real-time The underground static penetration data acquisition card that collects and stores the data detected by the static penetration probe and the static penetration data host computer management for processing and displaying the data collected and stored by the underground static penetration data acquisition card The system also includes an above-ground static penetration data acquisition instrument for transmitting the data collected and stored by the underground static penetration data acquisition card to the static penetration data host computer management system, and the above-ground static penetration data acquisition The instrument is respectively connected with the static penetration data acquisition card and the static penetration data upper computer management system;

The underground static penetration data acquisition card includes a microcontroller one, an analog signal processing module one connected with the microcontroller one, a synchronous clock module one, a data storage module one and a data communication module one, and a The first power supply module powered by the electric unit, the first analog signal processing module is connected with the static penetration probe;

The ground static penetration data acquisition instrument includes a microcontroller two, photoelectric encoders connected to the microcontroller two, a synchronous clock module two, a data storage module two, an operation button module, a liquid crystal display module, and a data communication module. The data communication module 2 supporting the use of module 1, the data communication module 3 supporting the use of the static penetration data upper computer management system, and the power supply module 2 for supplying power to each power unit. The photoelectric encoder is arranged on the probe rod top.

The above-mentioned cableless static penetrating sounder is characterized in that: the first microcontroller is a single-chip microcomputer STC12C5A60S2AD integrated with an A/D conversion unit inside.

The above-mentioned cableless static penetrometer is characterized in that: the analog signal processing module is composed of an amplifier circuit connected with the static penetrometer probe and a filter circuit connected with the amplifier circuit, and the filter circuit is connected with the amplifier circuit Microcontroller one phase.

The above-mentioned cableless static penetration sounder is characterized in that: the first data storage module and the second data storage module are both EEPROM memories.

The above-mentioned cableless static penetration sounder is characterized in that: the second microcontroller is a single-chip microcomputer STC89C52RC.

The above-mentioned cableless static penetration sounder is characterized in that: the first data communication module, the second data communication module and the third data communication module are RS-232 serial port communication circuit modules.

The above-mentioned cableless static penetration probe is characterized in that: the operation button module includes backlight buttons for selecting the backlight display mode of the liquid crystal display module, and for selecting the displayed content on the liquid crystal display module Up, Down, Left, and Right, and OK and Back.

The above-mentioned cableless static penetrating instrument is characterized in that: the static penetrating probe is a static penetrating double-bridge probe.

Compared with the prior art, the utility model has the following advantages:

1. The utility model combines the advantages and disadvantages of the existing static penetration data acquisition system at home and abroad, adopts advanced technologies such as single-chip microcomputer, VLSI, large-capacity data storage, clock synchronization and digital filtering, and abandons the traditional wired acquisition method (the connection cable between the underground probe and the data acquisition system on the ground), the structure is simple and the design is reasonable, which realizes the data acquisition of the cable-free static penetration test, which greatly reduces the difficulty of the static penetration test. It is convenient, improves the efficiency of the static penetration test and saves a lot of manpower and financial resources for the static penetration test.

2. The data storage module 1 is set in the underground static sounding data acquisition card of the utility model, and the data storage module 2 is set in the above-ground static sounding data acquisition instrument, which is convenient for data storage and has a large storage capacity. Automatically overwrite the original stored data, each time it can store the data collected by the system for 5 hours of continuous operation; and the data storage is reliable and the storage time is long; the number of continuous erasing/writing of the EEPROM memory used is up to 1 million times, and the data can be restored after power failure Long-term preservation (up to 100 years).

3. The utility model is convenient to use and operate, and the information displayed on the upper computer management system of the static sounding data is comprehensive. The human-computer interaction system is composed of an operation button module and a liquid crystal display module in the static sounding data acquisition instrument on the ground. High degree of humanization.

4. The utility model can transmit the data collected by the underground static sounding data acquisition card to the above-ground static sounding data acquisition instrument through the RS232 serial port communication mode, and then transmit the data collected by the above-ground static sounding data acquisition instrument through the RS232 serial port The communication method transmits the static penetration data to the upper computer management system for corresponding data analysis, processing and management. The data transmission has high reliability and is less affected by environmental conditions. The test can be carried out smoothly in the field under harsh conditions.

5. The power supply mode of the utility model is flexible, and can work continuously for a long time. It is equipped with a large-capacity rechargeable battery and uses low-power components. The underground static penetration data acquisition card can work continuously for at least about 2 hours. The probe data collector can work continuously for at least 10 hours.

To sum up, the utility model has the advantages of simple structure, reasonable design, convenient use and operation, large data storage capacity, long storage time, long continuous working time, high reliability, high work efficiency and high practical value. The present invention has defects and deficiencies such as high cost, great influence by environmental conditions, susceptibility to interference, and large deviation of measurement results.

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

Description of drawings

Fig. 1 is a structural block diagram of the cableless static penetration sounder of the present invention.

Fig. 2 is a block diagram of a method for collecting and processing static penetration testing data by adopting the utility model.

Explanation of reference signs:

1-underground static penetration data 1-1-microcontroller 1; 1-2-analog signal processing module

capture card; one piece;

1-3-synchronous clock module one; 1-4-data storage module one; 1-5-data communication module one;

1-6-power supply module 1; 2-ground static penetration data 2-1-microcontroller 2;

Acquisition instrument;

2-2-photoelectric encoder; 2-3-synchronous clock module two; 2-4-data storage module two;

2-5-operation button module; 2-6-liquid crystal display module; 2-7-data communication module two;

2-8-data communication module three; 2-9-power supply module two; 3-static penetration data upper position

machine management system;

4-Static penetration probe.

Detailed ways

As shown in Figure 1, the cableless static penetrating sounder described in the utility model includes a static penetrating probe for real-time collection and storage that is installed in the probe rod and penetrates into the ground with the static penetrating probe 4 4 The underground static penetration data acquisition card 1 for the detected data and the static penetration data host computer management system 3 for processing and displaying the data collected and stored by the underground static penetration data acquisition card 1, also including It is used to transmit the data collected and stored by the underground static sounding data acquisition card 1 to the above-ground static sounding data acquisition instrument 2 of the static sounding data host computer management system 3, the above-ground static sounding data acquisition instrument 2 respectively connected with the static penetration data acquisition card 1 and the static penetration data upper computer management system 3;

The underground static penetration data acquisition card 1 includes a microcontroller-1-1, an analog signal processing module-1-2 connected with the microcontroller-1-1, a synchronous clock module-1-3, data Storage module one 1-4, data communication module one 1-5, and power module one 1-6 for supplying power to each power unit, and the analog signal processing module one 1-2 is connected with the static penetrating probe 4;

The above-ground static penetration data acquisition instrument 2 includes a microcontroller two 2-1, a photoelectric encoder 2-2 connected to the microcontroller two 2-1, a synchronous clock module two 2-3, and a data storage module Two 2-4, operation button module 2-5, liquid crystal display module 2-6, data communication module used in conjunction with data communication module 1 1-5 2 2-7, supporting with static penetration data upper computer management system 3 The used data communication module three 2-8, and the power supply module two 2-9 for each power consumption unit, and the photoelectric encoder 2-2 is arranged on the top of the probe rod.

As shown in FIG. 1 , in this embodiment, the microcontroller one 1-1 is a single-chip microcomputer STC12C5A60S2AD integrated with an A/D conversion unit inside. The analog signal processing module one 1-2 is composed of an amplifier circuit connected with the static penetration probe 4 and a filter circuit connected with the amplifier circuit, and the filter circuit is connected with the microcontroller one 1-1. Both the first data storage module 1-4 and the second data storage module 2-4 are EEPROM memories. The microcontroller two 2-1 is a single-chip microcomputer STC89C52RC. The first data communication module 1-5, the second data communication module 2-7 and the third data communication module 2-8 are all RS-232 serial port communication circuit modules. The operation key module 2-5 includes a backlight key for selecting the backlight display mode of the liquid crystal display module 2-6, an upper key, a lower key, and a lower key for selecting the displayed content on the liquid crystal display module 2-6. Left and Right buttons, and OK and Back buttons. The static penetration probe 4 is a static penetration double bridge probe.

Specifically, both the first synchronous clock module 1-3 and the second synchronous clock module 2-3 can use the clock chip DS1302; the first data storage module 1-4 and the second data storage module 2-4 can both use the chip AT24C512. The data stored in the data storage module 1-4 mainly includes two types: 1. pressure data, that is, voltage value (millivolt level); 2. time data (hour, minute, second). The condition of data storage is that there should be a certain relationship between every two voltage values, and the time is attached (for example, the difference between every two voltage values should be outside a certain range); the amount of data accessed at one time is: pressure The value is 4 bytes (two bytes for each channel) + time (one byte for each hour, minute, and second) totaling 3 bytes = 7 bytes, and the voltage signal budget is collected twice per second, and 32Kbyte (256Kbit EEPROM) can store 4681 collections The data frame, that is, the data obtained by continuously collecting 4681/7200=0.6 hours. The data stored in the data storage module 2 2-4 mainly includes two types, 1. depth data, the minimum accuracy is at cm level; 2. time data (hour, minute, second). The condition of data storage is that there should be a certain relationship between the depth data taken every two times, and the time is attached (for example, the difference between the depth data between two times should be outside a certain range); the amount of data accessed at one time is: Depth 2 bytes (up to 65535cm or 655.35m) + time (one byte for each hour, minute and second) total 3 bytes = 5 bytes; two voltage signal budgets are collected according to one second, and 32Kbyte (256Kbit EEPROM) can store 6553 The collected data frame. That is, the data obtained by continuously collecting 6553/7200=0.9 hours.

In order to improve the reliability and measurement accuracy of the underground static penetration data acquisition card 1 and the ground static penetration data acquisition instrument 2, components with stable performance and wide temperature range are selected in the circuit design, and the analog signal processing module-1 In -2, a high-precision analog operational amplifier is selected; in order to reduce the volume of the underground static penetration data acquisition card 1 and install the underground static penetration data acquisition card 1 inside the probe rod, surface mounts are used on the selected components Components; in order to be easy to carry and prolong the service life, the shell of the ground static penetration data acquisition instrument 2 can be made of ABS engineering plastics, and the panel can be made of aluminum; in order to reduce the difficulty of system operation and improve the interaction between the system and users , choose reliable connectors, Chinese LCD display, key operation menu, etc.; in order to prolong the working time of the system, it is equipped with a large-capacity rechargeable battery and uses low-power components. For example, the underground system provides a large-capacity 5V square battery for power supply. The system is powered by a 9V rechargeable lithium battery. The underground static penetration data acquisition card can work continuously for at least 2 hours, and the ground static penetration data acquisition instrument can work continuously for at least 10 hours.

In conjunction with Fig. 2, adopting the utility model to carry out the method for collecting and processing the static penetration sounding data comprises the following steps:

Step 1. The underground static penetration data acquisition card collects and processes the signal of the initial detection value of the static penetration probe in real time. The real-time acquisition and processing process is as follows:

101. The analog signal processing module 1-2 sequentially amplifies and filters the cone tip resistance signal and the cone wall friction resistance signal output by the static penetration probe 1-2, and then outputs it to the microcontroller 1-1 ;

102. The microcontroller-1-1 regularly collects the signal output by the analog signal processing module-1-2 and performs A/D conversion. At the same time, the microcontroller-1-1 reads the synchronous clock module-1-3 The output synchronization time one;

103. The microcontroller one 1-1 judges whether it is necessary to store the data after the A/D conversion according to a certain judgment basis, and if it is determined to store, first store the synchronization time one, and then store the cone tip resistance signal and the cone wall friction resistance signal;

Step 2. The ground static penetration data acquisition instrument collects, processes and displays the depth signal of the probe rod and the signal output by the underground static penetration data acquisition card in real time. The real-time acquisition, processing and display process is as follows:

201. The micro-controller two 2-1 regularly collects the probe depth signal output by the photoelectric encoder 2-10, and at the same time, the micro-controller two 2-1 reads the synchronization time output by the synchronous clock module two 2-3 Two and store the synchronization time two and the probe rod depth signal in a specific format in the data storage module two 2-4, and display the synchronization time two and the probe rod depth signal on the liquid crystal display module 2-6 in real time ;

202. The microcontroller two 2-1 collects the synchronous time one, the cone tip resistance signal and the The cone wall friction signal is also stored in the data storage module two 2-4, and simultaneously the synchronization time one, the cone tip resistance signal and the cone wall friction signal are displayed on the liquid crystal display module 2-6 in real time;

The timing time described in step 201 is the same as the timing time described in step 102, specifically, the speed is 1 time/second; the synchronization time one described in step 201 corresponds to the synchronization time two described in step 202;

Step 3. Data upload: Synchronously upload synchronization time 1, cone tip resistance signal, cone wall friction resistance signal, synchronization time 2 and probe rod depth signal stored in microcontroller 2 2-1 through data communication module 3 2-8 To static penetration data host computer management system 3;

Step 4. Static CPT data processing and display: the static CPT data upper computer management system 3 invokes the data processing module to analyze the received synchronization time 1, cone tip resistance signal and cone wall friction resistance signal and Synchronize time 2 and probe rod depth signals for comprehensive analysis and processing, and obtain the corresponding curves of cone tip resistance and probe rod depth, and cone wall friction resistance and probe rod depth corresponding curves. The module synchronously displays the corresponding curves of cone tip resistance and probe rod depth and the corresponding curve of cone wall friction resistance and probe rod depth obtained by analysis and processing; the corresponding curve of cone tip resistance and probe rod depth is abscissa , The depth of the probe rod is the ordinate, the curve corresponding to the frictional resistance of the cone wall and the depth of the probe rod is the abscissa of the frictional resistance of the cone wall, and the depth of the probe rod is the ordinate.

In this embodiment, the judgment basis described in step 203 is: when the cone tip resistance signal data and the cone wall friction signal data are 0, do not store; when the same or similar cone tip resistance signal data or cone wall friction signal data appear continuously When the friction signal data is stored, it is only stored twice. This method is based on the continuity of the voltage signal change of the static penetration probe, that is, the signal will not change abruptly. The advantage is that redundant data is reduced. The data detection host computer management system 3 can also restore unstored data, ensuring the integrity of the information.

In the operation process of above-mentioned step 2 and step 3, the function of the ground static penetration data acquisition instrument 2 displayed on the liquid crystal display module 2-6 can be selected by operating the button module 2-5, and its functions include data acquisition, Data communication, time adjustment and time correction, select by operating the up button, down button, left button and right button, and confirm or return to reselect by pressing the confirm button and return button, each function corresponds to a different system state, the microcontroller Two 2-1 After obtaining the user's operation, it will determine whether to respond to the operation, no matter what state the system is in, the system will respond to the return operation.

The static penetration data upper computer management system 3 includes a system configuration module, a port configuration module, a data receiving module, a data processing module, a data display module, a data query module and a system help module; the system configuration module mainly realizes the system user information, authority, login password, and addition and deletion management; the port configuration module mainly realizes the setting of data communication parameters (comprising port number, baud number, port number, and rate, data format and check code, etc.); the data receiving module mainly realizes real-time reception of the synchronous clock collected by the underground static sounding data acquisition card 1 sent by the ground static sounding data acquisition instrument 2. signal and cone wall friction signal, as well as the synchronous clock 2 and probe rod depth signal collected by the surface static penetration data acquisition instrument 2, and the received data is stored in a specified database in a fixed format. The data is identified (that is, information such as the position of the input data collection, the hole number); the data processing module mainly realizes the connection between the cone tip resistance signal data and the cone wall friction resistance signal data collected by the underground static penetration data acquisition card 1. The fitting condition of the probe rod depth signal data collected by the static penetration data acquisition instrument is based on the synchronization clock 1 collected by the underground static penetration data acquisition card 1 and the ground static penetration data acquisition instrument 2 Synchronize the clock 2, and then draw the fitted data in the form of a curve and print the curve in the form of a report. The corresponding relationship of the curve is that the resistance of the cone tip corresponds to the depth of the probe rod, and the friction resistance of the cone wall corresponds to the depth of the probe rod; The data display module mainly realizes the display of the curve fitted by the data processing module; the data query module mainly realizes the query of historical data (can be conditional query according to data collection time, data collection location and data collection hole number) and print historical data; the system help module mainly provides information such as system operation instructions.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (8)

1. no cable formula static penetrometer, it is characterized in that: comprise and pack in the feeler lever and gather in real time and the underground static sounding data collecting card (1) of storage static sounding probe (4) institute detection data and be used for underground static sounding data collecting card (1) is gathered the static sounding data host computer management system (3) that the data of storing are handled and shown with underground being used for of static sounding probe (4) injection, comprise also being used for underground static sounding data collecting card (1) is gathered the ground static sounding data collecting instrument (2) that the data of storing send static sounding data host computer management system (3) to that described ground static sounding data collecting instrument (2) joins with static sounding data collecting card (1) and static sounding data host computer management system (3) respectively;

Described underground static sounding data collecting card (1) comprises microcontroller one (1-1), the analog signal processing module one (1-2), synchronised clock module one (1-3), data memory module one (1-4) and the data communication module one (1-5) that join with microcontroller one (1-1) respectively and is the power module one (1-6) of each power unit power supply that described analog signal processing module one (1-2) is joined with static sounding probe (4);

Described ground static sounding data collecting instrument (2) comprises microcontroller two (2-1), the photoelectric encoder (2-2) that joins with microcontroller two (2-1) respectively, synchronised clock module two (2-3), data memory module two (2-4), operation push-button module (2-5), LCD MODULE (2-6), with the matching used data communication module two of data communication module one (1-5) (2-7), with the matching used data communication module three of static sounding data host computer management system (3) (2-8), and being the power module two (2-9) of each power unit power supply, described photoelectric encoder (2-2) is arranged on the top of feeler lever.

2. according to the described no cable formula static penetrometer of claim 1, it is characterized in that: described microcontroller one (1-1) is the inner single-chip microcomputer STC12C5A60S2AD that is integrated with the A/D converting unit.

3. according to the described no cable formula static penetrometer of claim 1, it is characterized in that: described analog signal processing module one (1-2) constitutes by the amplifying circuit that joins with static sounding probe (4) with filter circuit that amplifying circuit joins, and described filter circuit and microcontroller one (1-1) join.

4. according to the described no cable formula static penetrometer of claim 1, it is characterized in that: described data memory module one (1-4) and data memory module two (2-4) are eeprom memory.

5. according to the described no cable formula static penetrometer of claim 1, it is characterized in that: described microcontroller two (2-1) is single-chip microcomputer STC89C52RC.

6. according to the described no cable formula static penetrometer of claim 1, it is characterized in that: described data communication module one (1-5), data communication module two (2-7) and data communication module three (2-8) are RS-232 serial communication circuit module.

7. according to the described no cable formula static penetrometer of claim 1, it is characterized in that: described operation push-button module (2-5) comprises and is used for backlight key that the display mode backlight of LCD MODULE (2-6) is selected, be used for LCD MODULE (2-6) is gone up last button that displayed content selects, button, left button and right button down, and definite button with return button.

8. according to the described no cable formula static penetrometer of claim 1, it is characterized in that: described static sounding probe (4) is static sounding doube bridge probe.

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