The equipment has been developed since 2002 and passed technical review in the end of 2006 and obtained administrative license of former Ministry of Railways in 2008. It passed the third party independent safety evaluation in 2012, which proves that products and product development process conform to SIL4 level specified by EN50126, EN50128 and EN50129 series standards, reaching international advanced level. The equipment obtained administrative license of National Railway Administration of the People's Republic of China and manufacturing enterprise license in October 2014, and passed certification of China Railway Test & Certification Center (CRCC).

"JWJ-C2 microcomputer axle counter" is safety signal equipment of spot check, which is mainly used to check circuit, turnout, plane cross section, level crossing occupancy or idle state. The function is equal to track circuit. Specific application of axle counter includes the following contents: firstly, axle counter is combined with semi-automatic block system (or combined with station interlocking station and automatic inter-station block circuit) to form automatic inter-station block; secondly, use axle counter to form automatic block; thirdly, use axle counter to check occupancy and idle state of station track section; fourthly, axle counter is applied to urban rail transit field as backup mode.

1. "Two-out-of-two” structure, "safety and door" and "dynamic driving" technology is adopted for software and hardware system of equipment, which conforms to fault-safety principle.

2. CAN bus transmission technology is adopted. System reliability is improved greatly with strong expandability.

3. Operating mode of trackside axle signal identification and digital transmission of axle information is adopted and anti-interference ability of system is strong.

4. Non-adjusting wheel sensor is adopted, which is convenient for equipment installation and operation and maintenance.

5. Equipment fault can be reminded by self-inspection fault code, which is convenient for usage and maintenance.