Blasting system and method of controlling a blasting operation

• US 7,594,471 B2
• Filed: 01/05/2005
• Issued: 09/29/2009
• Est. Priority Date: 07/21/2004
• Status: Active Grant

• Current Assignee: Detnet South Africa (Pty) Ltd
• Original Assignee: Detnet South Africa (Pty) Ltd
• Inventors: Schlenter, Craig Charles, Koekemoer, Andre
• Primary Examiner(s): Chambers; Troy
• Application Number:
  US11/028,603
• Publication Number:
  US 20060027121A1
• Time in Patent Office: 1,728 Days
• Field of Search: 102/200, 102/206, 102/301, 102/302, 102/303, 102/312, 102/215, 166/55.1, 166/66, 166/250.01, 166/297, 166/299
• US Class Current: 102/301
• CPC Class Codes: F42D 1/05 Electric circuits for blasting

Abstract

A method and apparatus for controlling a blasting operation using blast control equipment to initiate a plurality of detonators at a blast site. According to the method, the full use of the blast control equipment is inhibited, a validation process on information is conducted, and, if the information is validated, at least partial use of the blast control equipment is enabled. The blasting system includes at least one installation of blast control equipment and a plurality of detonators that are configured to be initiated by the blast control equipment, a control facility, and a transmitter for transmitting an enabling signal to at least one selected installation which allows the blast control equipment at the selected installation to initiate the plurality of detonators.

Claims

1. A method of controlling a blasting operation wherein blast control equipment is used to initiate a plurality of detonators at a blast site, the method including the steps of:

providing input information that comprises at least

a) the identity of a user of the blast control equipment;

b) the location of the blast control equipment;

c) the identity of the blast control equipment; and

d) a time or date during which blasting will be allowed;

providing inhibition software which is responsive to at least said input information and is connected to the blast control equipment;

using the inhibition software to inhibit full use of the blast control equipment;

providing validation software for conducting a validation process on the input information;

supplying the input information to the inhibit software and to the validation software;

using the validation software to conduct a validation process on the input information, and,

if the input information is validated, causing the inhibit software to enable at least partial use of the blast control equipment.

2. A method according to claim 1 wherein the input information further includes and the validation process is conducted on information selected from at least one the following:

the number of detonators which are to be initiated,

the type of detonators which are to be initiated,

the identity of software or firmware embodied or employed in the blast control equipment,

details of the configuration of the detonators,

information relating to programming of the detonators, and

a unique identifier.

3. A method according to claim 1 including transmitting the input information to the control equipment at the blast site, whereby the validation process is conducted on information transmitted to the blast site.

4. A method according to claim 1 wherein the step of supplying includes generating a request signal including the input information and supplying the request signal to the validation software so that the validation process is conducted on information extracted from the request signal.

5. A method according to claim 4 further including providing a control facility, and transmitting the request signal to the control facility.

6. A method according to claim 5 further including conducting the validation process at the control facility.

7. A method according to claim 5 including transmitting the request signal from the blast site to the control facility.

8. A method according to claim 5 including originating the request signal by a person who is setting up, or who intends to initiate, a blasting operation.

9. A method according to claim 5 including transmitting the request signal using a technique selected from the following:

wirelessly, through the use of fixed connections by making use of a network, by physically transporting the blast control equipment or a component thereof to the control facility, by generating the request signal at an intermediate facility from which the request signal is transmitted.

10. A method according to claim 1 wherein the inhibiting software utilizes at least one of the following:

an encryption/decryption technique, an algorithm, and a decoding key.

11. A method according to claim 10 wherein the inhibit software inhibits the blast control equipment by withholding information, required for blasting, from the blast control equipment, and said step of causing includes enabling the blast control equipment by transmitting this information to the blast control equipment after the validation process.

12. A method according to claim 1 including permitting the blast control equipment, while full use is inhibited, to carry out operations selected from:

the testing of detonators, the programming of detonators, and the arming of detonators.

13. A method according to claim 1 wherein said step of causing includes enabling the blast control equipment to initiate the plurality of detonators.

14. A method according to claim 1 wherein said step of causing includes enabling the blast control equipment so that it can receive at least one of the following:

an available firmware or software upgrade, information on the status of all or part of the blast control equipment, information relating to a permitted user of the blast control equipment, and diagnostic information.

15. A method according to claim 1 wherein said step of providing input information includes generating the input information is generated by at least one of the following:

by accessing a memory in which data is stored;

by a user inputting information;

by a biometric device; and

by in pulling data from a portable device.

16. A method according to claim 5 wherein said step of transmitting a request signal includes transmitting the request signal by a transmitter which is linked to the blast control equipment.

17. A method according to claim 5 which includes the step of logging information relating to at least one of the following:

the extent of usage of the blast control equipment;

the number of detonators which are fired;

the types of detonators;

the times of usage of the blast control equipment;

the identity of each user of the blast control equipment;

the area or areas in which the blast control equipment is employed; and

the software included in the blast control equipment.

18. A method according to claim 17 further comprising including the logged information in the request signal.

19. A method according to claim 1 which includes the steps of providing a control facility which is remote from the blast control equipment, and initiating diagnostic or maintenance routines on the blast control equipment at the control facility.

20. A method according to claim 1 wherein the step of causing includes allowing the blast control equipment, when enabled, to initiate detonators:

of a specific number or type;

during a specific time period;

for a specific mine or area;

for a number of blasting processes;

for a specific blast;

for a defined region;

or

under the control or supervision of one or more authorized persons.

21. A method according to claim 5 further including transmitting the request message via a communications link to a control facility at which the validation process is conducted.

22. A method according to claim 21 wherein the communications link is a cellular network.

23. A method according to claim 22 further including transmitting the request message using voice recognition or digital input techniques under the control of a program which is run at the control facility.

24. A method according to claim 1 further including providing a control facility and wherein said step of causing includes enabling the blast control equipment by a signal sent from the control facility.

25. A method according to claim 24 further including providing a plurality of separate installations of blast control equipment, and selectively enabling each installation by a respective signal from the control facility.

26. A method according to claim 4 further including providing a control facility, and wherein said step of generating a request signal includes sending the request signal from the control facility to the blast site, and said step of using the validation software includes conducting the validation process at the blast site.