CN103454687B - Three-dimensional electrical resistivity data measurement network system and addressing method thereof - Google Patents
Three-dimensional electrical resistivity data measurement network system and addressing method thereof Download PDFInfo
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- CN103454687B CN103454687B CN201310411783.8A CN201310411783A CN103454687B CN 103454687 B CN103454687 B CN 103454687B CN 201310411783 A CN201310411783 A CN 201310411783A CN 103454687 B CN103454687 B CN 103454687B
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Abstract
A kind of three-dimensional electrical resistivity data measurement network system, the shared data acquisition unit of the master control machine row that to be distributed in ground position different, according to useful range often row layout data collector, each data collector connects 16 electrode shifters, all data collectors are by CAN and master control machine composition one-level CAN network, and a data collector forms two grades of CAN networks by CAN with 16 the electrode shifters being connected. The logical CAN network of the present invention and chip technology complete data while parallel acquisition, after main frame sends acquisition, the data of all measurement point keep synchronously gathering simultaneously; During the collection of 3 D resistivity data, the position of each take off data in useful range, complete the automatic addressing of data collector and the automatic addressing of location and electrode shifter and location before measurement, it has, and collection speed is fast, stable performance, the feature easily safeguarded.
Description
Technical field
The invention belongs to technical field of geophysical exploration, it is the DC electrical method exploration technology being applied in resource and environment exploration technical field, it relates to a kind of three-dimensional electrical resistivity data measurement network system and addressing method thereof.
Background technology
The research work of resistivity prospecting starts from earlier 1800s. Along with the development of science with look for the needs in ore deposit, resistivity prospecting is theoretical and instrument becomes better and approaching perfection day by day. Entering the beginning of this century, along with the application of large-scale integrated circuit and the further raising of computing velocity, resistivity prospecting has started to three-dimensional development, and high-density electric instrument develops into forth generation from the first-generation. Owing to no matter being current serial metering system or parallel measurement mode, all have employed RS485 bus to carry out controlling and transfer, its longest distance is 1200 meters of scopes only, and data rate is slower, and data transfer equipment is shared model, serial acquisition data and conversion can only be carried out.
Summary of the invention
The object of the present invention just provides a kind of and gathers that speed is fast, stable performance, the three-dimensional electrical resistivity data measurement network system easily safeguarded and addressing method thereof.
The three-dimensional electrical resistivity data measurement network system of the present invention, comprise master control machine, power supply device, data collector, electrode shifter, cable, it is characterized in, the shared data acquisition unit of the master control machine row that to be distributed in ground position different, according to the useful range often one or more data collector of row layout, each data collector connects 16 electrode shifters, data collector adopts CortexM3-LPC1788 microcontroller and 2 ADS1278 digital to analog converters, complete 16 electrode parallel data gatherings, ADS1278 digital to analog converter inside comprises 8 parallel 24 digital to analog converters, system cost can be saved like this, the complexity of minimizing system, all data collectors are by CAN and master control machine composition one-level CAN network, a data collector is by CAN and 16 electrode shifter (4) the composition two grades of CAN networks being connected, master control machine forms a CAN network by CAN and power supply device.
The three-dimensional electrical resistivity data measurement network system addressing method of the present invention is, data collector and electrode shifter are all by serial mode when starting to address, by closely carrying out addressing and locating one by one to order far away, exported with selected input effectively with invalid by gating, being addressed by device and locate, described method comprises the steps:
Steps A: master control machine, data collector and electrode shifter power on, master control machine gate output signal is set to effectively, and it is invalid that the gate output signal of data collector and electrode shifter is set to;
Step B: the quantity of master control machine setting data gathering device, the quantity of electrode shifter, sends addressing order;
Step C: the gating of master control machine exports effectively so that the selected input of the first step data collector being connected with it is effective, performs addressing order, is addressed by first step data collector;
Step D: after first step data collector addresses, addressing mark assignment in address is 1, represent that addressing completes, the addressing order frame received is processed, the quantity of the data collector of addressing order frame is subtracted 1, address sequence number adds 1, it is assembled into a new data frame, gating is made to export effectively, the selected input of the second stage data collector being connected with it is effective, send new data frame to data collector, only selected input effectively and address addressing mark value be 0 device could perform to address order frame, complete to address;
Step e: addressed by data collector one by one according to the mode of step D, until when the quantity of data collector is 0, the data collector addressing representing all is complete, sends and confirms that frame is to master control machine;
Step F: master control machine receives after data collector addresses complete confirmation, sends the addressing order frame to electrode shifter to all data collectors;
Step G: after each data collector receives the addressing order frame to electrode shifter, the gating of the cable being connected with oneself is made to export effectively, make the selected input of the electrode shifter of the row first step effective, data collector sends addressing order frame to electrode shifter, the electrode shifter response addressing order frame of the first step, completes addressing;
Step H: after electrode shifter completes addressing, the quantity of the electrode shifter of addressing order frame is subtracted 1, address sequence number adds 1, it is assembled into a new data frame, making gating export effectively, the selected input of the next stage electrode shifter being connected with it is effective, sends new data frame to electrode shifter, the next stage electrode shifter response addressing order frame being connected with it, completes addressing;
Step I: addressed by electrode shifter one by one according to the mode of step H, until when the quantity of electrode shifter is 0, the electrode shifter addressing representing all is complete, sends and confirms that frame is to data collector;
Step J: data collector receives after electrode shifter addresses complete confirmation frame, addresses complete confirmation frame to master control machine sender electrode shifter.
The three-dimensional electrical resistivity data measurement network system of the present invention and addressing method thereof, logical CAN network and chip technology complete data while parallel acquisition, after main frame sends acquisition, the data of all measurement point keep synchronously gathering simultaneously; During the collection of 3 D resistivity data, the position of transmitting electrode must be known, the position of each take off data in useful range, complete the automatic addressing of data collector and the automatic addressing of location and electrode shifter and location before measurement, it has, and collection speed is fast, stable performance, the feature easily safeguarded.
Accompanying drawing explanation
Fig. 1 is the system architecture figure of the three-dimensional electrical resistivity data measurement network system of the present invention;
Fig. 2 is data collector schematic diagram in three-dimensional electrical resistivity data measurement network system of the present invention;
Fig. 3 is the schematic diagram that in three-dimensional electrical resistivity data measurement network system of the present invention, electrode shifter addresses automatically.
Embodiment
With reference to Fig. 1, the three-dimensional electrical resistivity data measurement network system of the present invention, comprise master control machine 1, data collector 3, electrode shifter 4, power supply device 2, cable, measurement point is arranged according to detection requirement, establish coordinate, then arrangement apparatus, every 16 electrodes be one group by the pitch arrangement set in a line, each electrode is connected with an electrode shifter 4, 16 electrode shifters 4 are connected by cable 7, every 16 electrode shifters 4 are one group, each group start arranges a data collector 3, data collector 3 is connected in series by cable 6, master control machine is arranged in true origin position be connected by cable 6 with beginning data collector 3 of the first row, master control machine connects power supply device 2 by cable 5.
Shown in Fig. 2, the automatic addressing method of the data collector 3 of the network system of a kind of three-dimensional electrical resistivity data measurement, concrete implementation step is as follows:
Step 1: master control machine 1, data collector 3 and electrode shifter 4 power on, master control machine 1 gate output signal is set to effectively, and it is invalid that the gate output signal of data collector 3 and electrode shifter 4 is set to;
Step 2: the quantity of master control machine 1 setting data gathering device 3, the quantity of electrode shifter 4, sends addressing order;
Step 3: the gating of master control machine 1 exports effectively so that the selected input of the first step data collector 3 being connected with it is effective, performs addressing order, is addressed by first step data collector 3;
Step 4: after first step data collector 3 addresses, addressing mark assignment in address is 1, represent that addressing completes, the addressing order frame received is processed, the quantity of the data collector 3 of addressing order frame is subtracted 1, address sequence number adds 1, it is assembled into a new data frame, gating is made to export effectively, the selected input of the second stage data collector 3 being connected with it is effective, send new data frame to data collector 3, only selected input effectively and address addressing mark value be 0 device could perform to address order frame, complete to address;
Step 5: addressed by data collector 3 one by one according to the mode of step 4, until when the quantity of data collector 3 is 0, the data collector 3 representing all addresses complete, sends and confirms that frame is to master control machine 1;
Step 6: master control machine 1 receives after data collector 3 addresses complete confirmation, sends the addressing order frame to electrode shifter 4 to all data collectors 3.
Shown in Fig. 3, the electrode shifter 4 of the network system of a kind of three-dimensional electrical resistivity data measurement addresses method, and concrete implementation step is as follows:
Step 1: after each data collector 3 receives the addressing order frame to electrode shifter 4, the gating of the cable 7 being connected with oneself is made to export effectively, also just make the selected input of the electrode shifter 4 of the row first step effective, data collector 3 sends addressing order frame to electrode shifter 4, the electrode shifter 4 of the first step responds addressing order frame, completes addressing;
Step 2: after electrode shifter 4 completes addressing, the quantity of the electrode shifter 4 of addressing order frame is subtracted 1, address sequence number adds 1, it is assembled into a new data frame, making gating export effectively, the selected input of the next stage electrode shifter 4 being connected with it is effective, sends new data frame to electrode shifter 4, the next stage electrode shifter 4 response addressing order frame being connected with it, completes addressing;
Step 3: addressed by electrode shifter 4 one by one according to the mode of step 2, until when the quantity of electrode shifter 4 is 0, the electrode shifter 4 representing all addresses complete, sends and confirms that frame is to data collector 3;
Step 4: data collector 3 receives after electrode shifter 4 addresses complete confirmation frame, addresses complete confirmation frame to master control machine 1 sender electrode shifter 4.
After system completes data collector 3 and electrode shifter 4 addressing, master control machine sets measuring parameter, sends measuring command, starts to measure.
Claims (1)
1. a three-dimensional electrical resistivity data measurement network system addressing method, it is characterised in that: it comprises the following steps:
Steps A: master control machine (1), data collector (3) and electrode shifter (4) power on, master control machine (1) gate output signal is set to effectively, and it is invalid that the gate output signal of data collector (3) and electrode shifter (4) is set to;
Step B: the quantity of master control machine (1) setting data gathering device (3), the quantity of electrode shifter (4), sends addressing order;
Step C: the gating of master control machine (1) exports effectively so that the selected input of the first step data collector (3) being connected with it is effective, performs addressing order, is addressed by first step data collector (3);
Step D: after first step data collector (3) addresses, addressing mark assignment in address is 1, represent that addressing completes, the addressing order frame received is processed, the quantity of the data collector (3) of addressing order frame is subtracted 1, address sequence number adds 1, it is assembled into a new data frame, gating is made to export effectively, the selected input of the second stage data collector (3) being connected with it is effective, send new data frame to data collector (3), only selected input effectively and address addressing mark value be 0 device could perform to address order frame, complete addressing,
Step e: addressed by data collector (3) one by one according to the mode of step D, until when the quantity of data collector (3) is 0, the data collector (3) representing all addresses complete, sends and confirms that frame is to master control machine (1);
Step F: master control machine (1) receives after data collector (3) addresses complete confirmation, sends the addressing order frame to electrode shifter (4) to all data collectors (3);
Step G: after each data collector (3) receives the addressing order frame to electrode shifter (4), the gating of the cable (7) being connected with oneself is made to export effectively, also just make the selected input of the electrode shifter (4) of the row first step effective, data collector (3) sends addressing order frame to electrode shifter (4), electrode shifter (4) the response addressing order frame of the first step, completes addressing;
Step H: after electrode shifter (4) completes addressing, the quantity of the electrode shifter (4) of addressing order frame is subtracted 1, address sequence number adds 1, it is assembled into a new data frame, making gating export effectively, the selected input of next stage electrode shifter (4) being connected with it is effective, sends new data frame to electrode shifter (4), next stage electrode shifter (4) the response addressing order frame being connected with it, completes addressing;
Step I: one by one electrode shifter (4) is addressed according to the mode of step H, until when the quantity of electrode shifter (4) is 0, the electrode shifter (4) representing all addresses complete, sends and confirms that frame is to data collector (3);
Step J: data collector (3) receives after electrode shifter (4) addresses complete confirmation frame, addresses complete confirmation frame to master control machine (1) sender electrode shifter (4).
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| CN104360397B (en) * | 2014-12-09 | 2017-05-24 | 重庆地质仪器厂 | Automatic encoding method of three-dimensional resistivity imaging system |
| CN104808247A (en) * | 2015-05-11 | 2015-07-29 | 中煤邯郸特殊凿井有限公司 | Detection method of freezing effect |
| CN108063709A (en) * | 2017-11-30 | 2018-05-22 | 控福（上海）智能科技有限公司 | A kind of communication system to test module three-dimensional fix |
| CN108628232A (en) * | 2018-07-11 | 2018-10-09 | 汉能移动能源控股集团有限公司 | Coding controller, coding control system and coding method |
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| US6226601B1 (en) * | 1998-05-15 | 2001-05-01 | Trimble Navigation Limited | Seismic survey system |
| CN101581795A (en) * | 2009-06-30 | 2009-11-18 | 东华理工大学 | Data-collecting sub-station device of three-dimensional resistivity imaging system |
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