Electronic delay detonator logging control device and method therefor

Patent metadata

Field	Value
Publication number	US-10859360-B2
Application number	US-201716477622-A
Country	US
Kind code	B2
Filing date	Jan 20, 2017
Priority date	Jan 20, 2017
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

An electronic delay detonator logging control device and a method therefor are disclosed. The state and the connection of a plurality of electronic delay detonators connected in parallel and a trunk line are inspected before blasting so as to check for an incomplete connection and prevent a partial misfire. A log counter is assigned to the plurality of electronic delay detonators such that the plurality of electronic delay detonators can be blasted in desired blasting patterns or in sequence. In the event of a failure, a logging recovery mode is operated so as to recover connection information of the plurality of electronic delay detonators.

First claim

The invention claimed is:

1. An electronic delay detonator logging control device, the device comprising:
a logging mode operation unit operating a logging mode when a controller is interconnected with a trunk line connected to a plurality of electronic delay detonators, at least one electronic delay detonator among the plurality of electronic delay detonators is not assigned a log counter, the other electronic delay detonators are assigned the log counter;
a detonator detection signal transmission unit transmitting a detonator detection signal to the plurality of electronic delay detonators through the trunk line when the logging mode is operated;
a detection reception response signal reception unit receiving a detonator detection reception response signal for a detonator detection signal transmitted from at least one electronic delay detonator to which the log counter is not assigned among the plurality of electronic delay detonators;
a log counter transmission unit issuing and transmitting the log counter to at least one of the electronic delay detonators when the detonator detection reception response signal is received;
a counter reception response signal reception unit receiving a counter reception response signal for a log counter reception transmitted from at least one of the electronic delay detonators that receives and records the log counter; and
a logging mode termination unit terminating the logging mode via user operation,
wherein the electronic delay detonator logging control device is integrated with the controller and the device is interconnected to the trunk line that is connected to the plurality of electronic delay detonators,
wherein the counter reception response signal reception unit includes:
a signal number counting unit counting a number of detonator detection reception response signals received;
a counter deletion request signal transmission unit transmitting a counter deletion request signal for deleting a recently issued log counter to at least one of the electronic delay detonators when two or more counter reception response signals are received for the log counter reception; and
a counter deletion performance signal reception unit receiving a counter deletion performance signal for the counter deletion request signal transmitted from at least one of the electronic delay detonators that receives the counter deletion request signal.

2. The device of claim 1 , wherein the log counter transmission unit issues the log counter including a unique ID for the controller and a sequence of the log counter.

3. The device of claim 1 , wherein when the logging mode is terminated by user, the logging mode termination unit transmits a logging mode termination instruction to the plurality of electronic delay detonators so that the electronic delay detonators receiving the instruction switch to an operation standby mode.

4. The device of claim 1 , further comprising:
a logging recovery mode operation unit operating a logging recovery mode when a failure occurs in the controller and a new controller is connected to the trunk line.

5. The device of claim 4 , wherein the logging recovery mode operation unit includes:
a counter repeat instruction transmission unit transmitting a counter repeat instruction signal to the plurality of electronic delay detonators through the trunk line when the logging recovery mode is operated; and
a log counter repeat signal reception unit receiving and recording a log counter repeat signal transmitted from the electronic delay detonator in a predetermined sequence.

6. The device of claim 5 , wherein the logging mode operation unit operates the logging mode for the controller when the log counter repeat signal is received.

7. The device of claim 1 , wherein the electronic delay detonator includes:
an activation mode operation unit connected in parallel to the trunk line and operating in an activation mode to perform charging within a predetermined time when the logging mode is operated;
a state checking unit checking whether the log counter is assigned when the charging is completed;
a detection response signal transmission unit transmitting the detonator detection reception response signal for the detonator detection signal when the log counter is not assigned and not transmitting the detonator detection reception response signal for the detonator detection signal when the log counter is assigned;
a log counter receiving unit receiving and recording the log counter when the log counter is not assigned, and ignoring the log counter when the log counter is assigned;
a counter reception response signal transmission unit transmitting the counter reception response signal for the log counter reception when the log counter is received and recorded; and
an operation standby mode switching unit terminating the activation mode and switching to an operation standby mode, when the logging mode is terminated.

8. The device of claim 7 , wherein the electronic delay detonator includes:
a counter deletion performance unit deleting a corresponding log counter upon receiving and recording the corresponding log counter when the counter deletion request signal for deleting the recently issued log counter is received; and
a counter deletion performance signal transmission unit transmitting a counter deletion performance signal for the counter deletion request signal after the deleting of the log counter.

9. The device of claim 7 , wherein the electronic delay detonator includes:
a correction standby mode switching unit operating in a logging recovery mode and receiving a counter repeat instruction signal; and
a counter repeat signal transmission unit transmitting a log counter repeat signal in a predetermined sequence.

10. The device of claim 7 , wherein the electronic delay detonator further includes a log counter issue request signal transmission unit for transmitting a log counter issue request signal to the log counter transmission unit when it is recognized that the controller is set to a reception mode, so that, when the log counter is not assigned, the log counter transmitted from the log counter transmission unit that receives the log counter issue request signal is received and recorded through the log counter receiving unit.

11. An electronic delay detonator logging control method, the method comprising:
by a logging mode operation unit, operating a logging mode when a controller is interconnected with a trunk line connected to a plurality of electronic delay detonators, at least one electronic delay detonator among the plurality of electronic delay detonators is not assigned a log counter, the other electronic delay detonators are assigned the log counter;
by a detonator detection signal transmission unit, transmitting a detonator detection signal to the plurality of electronic delay detonators through the trunk line when the logging mode is operated;
by a detection reception response signal reception unit, receiving a detonator detection reception response signal for a detonator detection signal transmitted from at least one electronic delay detonator to which the log counter is not assigned among the plurality of electronic delay detonators;
by a log counter transmission unit, issuing and transmitting the log counter to at least one of the electronic delay detonators when the detonator detection reception response signal is received;
by a counter reception response signal reception unit, receiving a counter reception response signal for a log counter reception transmitted from at least one of the electronic delay detonators that receives and records the log counter; and
by a logging mode termination unit, terminating the logging mo

Assignees

• Hanwha Corp

Inventors

• Choi Jeong Ho

Classifications

• F42D1/05

  Electric circuits for blasting · CPC title

• F42D3/04

  for rock blasting · CPC title

• F42D1/055 Primary

  specially adapted for firing multiple charges with a time delay · CPC title

• F42D1/06

  Relative timing of multiple charges ({F42D1/043 and } F42D1/055 take precedence) · CPC title