US 11,704,445 B2
Tamper resistant module for industrial control system
Albert Rooyakkers, Sunnyvale, CA (US); and Ken Doucette, Norton, MA (US)
Assigned to Bedrock Automation Platforms Inc., San Jose, CA (US)
Filed by Bedrock Automation Platforms Inc., San Jose, CA (US)
Filed on Mar. 1, 2022, as Appl. No. 17/683,706.
Application 17/683,706 is a continuation of application No. 16/741,120, filed on Jan. 13, 2020, granted, now 11,263,355.
Application 16/741,120 is a continuation of application No. 14/918,558, filed on Oct. 20, 2015, granted, now 10,534,937, issued on Jan. 14, 2020.
Claims priority of provisional application 62/066,267, filed on Oct. 20, 2014.
Prior Publication US 2022/0405432 A1, Dec. 22, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 21/86 (2013.01); G06F 21/60 (2013.01); G06F 21/71 (2013.01); H05K 5/02 (2006.01)
CPC G06F 21/86 (2013.01) [G06F 21/604 (2013.01); G06F 21/71 (2013.01); H05K 5/0208 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A secure industrial control system module, comprising:
a housing including a first housing side and a second housing side;
a circuit board housed by the housing, the circuit board including a power backplane and a communications backplane;
a computer-readable storage memory communicatively coupled to the circuit board; a high potential capacitor operatively coupled to the computer-readable storage memory;
an encasement seal disposed on the first housing side and the second housing side, the encasement seal including an electrical circuit configured to indicate a first unauthorized access event in response to damage to the electrical circuit;
a switch trigger disposed on the first housing side;
an electronic switch assembly disposed on the second housing side, the electronic switch assembly configured to receive the switch trigger, the electronic switch assembly configured to indicate a second unauthorized access event in response to separation of the switch trigger from the electronic switch assembly;
a sensor housed by the housing, the sensor configured to indicate a third unauthorized event in response to at least one of: detection of ambient light, detection of a predetermined amount of heat or radiation, detection of a predetermined level of vibration, or detection of movement or repositioning of the industrial control system module; and
a controller communicatively coupled to the electrical circuit, the electronic switch assembly, and the sensor, wherein, in response to at least one of the first, second, or third unauthorized access events, the controller is configured to perform a security action, the security action including:
initiate an encryption algorithm to encrypt data stored on the computer-readable storage memory, and
activate the high potential capacitor to erase data stored on the computer-readable storage memory.