Networking communication protocol of electronic detonator

Abstract

The application belongs to the technical field of electronic detonators, and particularly relates to an electronic detonator networking communication protocol, which comprises the following steps: S1, checking the model and parameters of all used electronic detonators, and checking whether each electronic detonator has the ability of network connection; S2, wiring each electronic detonator according to the electronic detonator networking communication protocol by using a special cable and a connector, and setting a unique address code for each electronic detonator; S3, electrically testing the circuit to ensure that the resistance value of the bus meets the requirements, all detonators are correctly connected, the parallel electronic detonators are normally powered, and there is no potential danger; and S4, configuring a master control device or a control system, and testing and debugging the device.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic detonators, and particularly relates to an electronic detonator networking communication protocol. BACKGROUND

[0002] Since the electronic detonator belongs to a loss-type consumer, the production cost thereof needs to be cheap, and in order to ensure the safety of personnel at a blasting site, the communication distance of the electronic detonator needs to be long, and the communication distance is not less than 1000 m. Once networking is performed at a large blasting site, several hundred electronic detonators are required, and the networking of the communication network of the electronic detonator needs to be strong. After blasting on site, the networking wire is often damaged, and the communication line is also a one-time consumer. In order to control the cost, the communication line of the electronic detonator is combined with the power supply line, and the communication is established on the power supply line. At present, there are various types of communication-power supply solutions. Considering the cost, size, power consumption and other requirements of the electronic detonator, it is required that the design is as simple as possible.

[0003] The existing electronic detonator communication bus protocol mainly solves the problem of power consumption during product communication, adopts a short and fast communication packet mode, and sleeps and charges immediately after communication of a short packet. This mode has high communication voltage, long idle time of the bus, and much invalid data needs to be transmitted in order to assemble a short packet, and cannot adapt to a scene of more than 1600 m of the communication bus.

[0004] Therefore, the application provides an electronic detonator networking communication protocol. SUMMARY

[0005] In order to make up for the deficiencies of the prior art and solve at least one problem in the background art, an electronic detonator networking communication protocol is provided.

[0006] The technical scheme adopted by the application to solve the technical problem is that the application provides an electronic detonator networking communication protocol, which comprises:

[0007] S1: checking the type and parameters of all used electronic detonators, and checking whether each electronic detonator has the ability of network connection;

[0008] S2: first connecting the grounding wire, then connecting the dedicated cable and the connector, wiring each electronic detonator according to the electronic detonator networking communication protocol, and setting a unique address code for each electronic detonator;

[0009] S3: electrically testing the circuit to ensure that the resistance value of each electronic detonator meets the requirements, all detonators are correctly connected, and there is no potential danger;

[0010] S4: configuring a master control device or a control system, and testing and debugging the device.

[0011] Preferably, the S2 electronic detonator networking communication protocol transmits byte data, including a start signal period, a data bit signal, a check bit and an end signal period.

[0012] Preferably, the S2 electronic detonator networking communication protocol data accepts 0xAA, adopts odd check, and the transmitted pulse format is as follows:

[0013] Start 1 0 1 0 1 0 1 0 1 Stop;

[0014] Tstart = Tstop;

[0015] Tb1 = Tb0;

[0016] Tb1*1.5 ≤ Tstart,Tstop≤Tb1*2;

[0017] When Th > Tl, the data is 1.

[0018] When Th < Tl, the data is 0.

[0019] Preferably, the S2 electronic detonator networking communication protocol is analyzed as data 1 when the high level time is greater than the low level time; and the S2 electronic detonator networking communication protocol is analyzed as data 0 when the low level time is greater than the high level time.

[0020] Preferably, the S2 electronic detonator networking communication protocol start signal period is 1.5 times-2 times of the data signal period, and is data 1; and the S2 electronic detonator networking communication protocol data frame end signal period is 1.5 times-2 times of the data period, and is data 0.

[0021] Preferably, the S2 electronic detonator networking communication protocol data bits period and the check bit period are equal, and meet the relationship with the start signal period.

[0022] Preferably, the S2 electronic detonator networking communication protocol start signal period is equal to the end signal period.

[0023] Preferably, the S2 electronic detonator networking communication protocol check bit data bit exists 8 bits data, and adopts odd check.

[0024] The beneficial effects of the present application are as follows:

[0025] 1. The electronic detonator networking communication protocol has strong anti-interference ability, adopts non-return-to-zero encoding mode, each byte of data itself has a check mechanism, and the data bits have a period relationship, the data is located in the start signal period, and the start is located between the data and has a period relationship.

[0026] 2. The electronic detonator networking communication protocol of the present application, the communication rate is flexible and adjustable, because the period of data and start signal period directly adopts the ratio relationship. As long as the ratio relationship is changed, the change of communication rate can be realized. A communication frequency for each byte can be realized. In the case of using 100KHz communication clock, the highest communication rate measured by experiment is 10Kbit / s.

[0027] 3. The electronic detonator networking communication protocol of the present application, the fault tolerance is strong. The communication protocol does not depend on the accuracy of system clock. In the application of electric detonator, hundreds of detonators are networked once. The chip clock difference is large. After the ratio relationship between the start signal period and the data signal is ignored, the error can be ignored.

[0028] 4. The electronic detonator networking communication protocol of the present application, the transmission distance is far. Because the variable frequency technology is adopted. In actual application, according to the different electronic detonator networking environment, in the case of reducing the communication rate, 400 detonators can realize the communication effect of more than 2500 meters. BRIEF DESCRIPTION OF DRAWINGS

[0029] The present application will be further described below in combination with the drawings.

[0030] Figure 1 is a flow chart of an electronic detonator networking method in the present application;

[0031] Figure 2 is a schematic diagram of the pulse format sent in the present application; DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] The specific embodiments are given below.

[0034] As shown in the drawings, the electronic detonator networking communication protocol of the present application comprises: Figure 1 S1: check the type and parameters of all used electronic detonators, and check whether each electronic detonator has the ability of network connection;

[0035] S2: use a dedicated cable and connector, connect each electronic detonator according to the electronic detonator networking communication protocol, and set a unique address code for each electronic detonator;

[0036] ​

[0037] S3: Electrical test of the circuit to ensure that the resistance value of the bus meets the requirements, all detonators have been correctly connected, parallel electronic detonators are normally powered, and there is no potential danger;

[0038] S4: Configure the master control device or control system, and test and debug the device.

[0039] As shown in Figure 2 , the S2 electronic detonator networking communication protocol transmits byte data, including a start signal period, data bit signals, check bits, and an end signal period; the S2 electronic detonator networking communication protocol data accepts 0xAA, uses odd check, and the transmitted pulse format is as follows:

[0040] Start (start signal period) 1 0 1 0 1 0 1 0 (8-bit data) 1 (odd check data) {The aforementioned numbers (8+1) are the data field} Stop (stop signal);

[0041] Tstart (start signal period) = Tstop (end signal period); (The start and end periods are the same)

[0042] Tb1 = Tb0; (The period of the data field must be equal)

[0043] Tb1 * 1.5 (1.5 times the data field) ≤ Tstart, Tstop ≤ Tb1 * 2 (2 times the data field);

[0044] (The above formula is used to constrain the multiple relationship of the data field period)

[0045] When Th (high level time) > Tl (low level time), the data {the data output to the above-mentioned data field} is 1;

[0046] When Th (high level time) < Tl (low level time), the data (the data output to the above-mentioned data field) is 0;

[0047] As shown in Figure 2As shown, the S2 electronic detonator networking communication protocol is parsed as data 1 when the high level time is greater than the low level time; the S2 electronic detonator networking communication protocol is parsed as data 0 when the low level time is greater than the high level time; the S2 electronic detonator networking communication protocol start signal period is 1.5 times-2 times of the data signal period, and is data 1; the S2 electronic detonator networking communication protocol data frame end signal period is 1.5 times-2 times of the data period, and is data 0; the S2 electronic detonator networking communication protocol data bits period and the check bit bit period are equal, and meet the relationship with the start signal period; the S2 electronic detonator networking communication protocol start signal period and the end signal period are equal; the S2 electronic detonator networking communication protocol check bit data bit exists 8 bits data, and adopts odd check; this electronic detonator networking communication protocol has strong anti-interference ability, adopts non-return-to-zero encoding mode, each byte of data itself has a check mechanism, and there is a period relationship between the data bits; the data is located in the start signal period and has a period relationship; the start is located between the data and has a period relationship; the communication rate is flexible and adjustable; since the period of data and the start signal period directly adopts a ratio relationship, as long as the ratio relationship is changed, the communication rate can be changed; one communication frequency per byte can be realized; in the case of using a 10Kbit / s communication clock, the highest communication rate measured in the experiment is 10Kbit / s; the anti-fault tolerance is strong; this communication protocol does not depend on the accuracy of the system clock; in the application of electric detonator, hundreds of shots are networked at a time, the chip clock difference is large, and after the ratio relationship of the start signal period and the data signal in the experiment, the error can be ignored; the transmission distance is far; since the variable frequency technology is adopted, in actual application, according to the electronic detonator networking environment, the communication effect of more than 2500 meters can be realized under the condition of reducing the communication rate.

[0048] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A networking communication protocol for electronic detonators, characterized in that: The protocol includes: S1: Check the models and parameters of all detonators used and check whether each electronic detonator has the ability of network connection; S2: Use special cables and connectors to wire each electronic detonator according to the electronic detonator networking communication protocol and set a unique address code for each electronic detonator; S3: Conduct electrical tests on the circuit to ensure that the resistance value of the bus meets the requirements, all detonators are correctly connected, the parallel electronic detonators are powered on normally, and there are no potential hazards; S4: Configure the master device or control system and test and debug the device; When the electronic detonator networking communication protocol in S2 transmits byte data, it includes a start signal, data bit signals, a parity bit, and an end signal; When the electronic detonator networking communication protocol in S2 receives 0xAA, odd parity is used, and the pulse format sent is as follows: Start 1 0 1 0 1 0 1 0 1 Stop; Tstart = Tstop; Tb1 = Tb0; Tb1*1.5 ≤ Tstart,Tstop≤Tb1*2; When Th > Tl, the data is 1; When Th < Tl, the data is 0; Where Start is the start signal; the multiple numbers following Start are multiple bits of data, and the last number is the odd parity data; where Stop is the stop signal; Where Tstart is the start signal period; Tstop is the end signal period; and the start period is the same as the end period; Where Tb1 and Tb0 are the periods of the data field; Where Th is the high-level time; Tl is the low-level time; When the high-level time is greater than the low-level time in the electronic detonator networking communication protocol in S2, it is parsed as data 1; when the low-level time is greater than the high-level time in the electronic detonator networking communication protocol in S2, it is parsed as data 0; The start signal period of the electronic detonator networking communication protocol in S2 is 1.5 to 2 times the data signal period and is data 1; the end signal period of the data frame of the electronic detonator networking communication protocol in S2 is 1.5 to 2 times the data period and is data 0; The data bits period and the parity bit period of the electronic detonator networking communication protocol in S2 are equal and satisfy the relationship with the start signal period; The start signal period and the end signal period of the electronic detonator networking communication protocol in S2 are equal.

2. The electronic detonator networking communication protocol according to claim 1, characterized in that: For the parity bit data bit of the electronic detonator networking communication protocol in S2, odd parity is used after 8 bits of data.

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