This paper has introduced a kind of intellectual detection system. Based on electronic circuit, this system which adopts the integrated circuit can realize the following functions: When someone passes in or out, it firstly transmits the signal of transmitting circuit, receives the signal of receiving circuit, and the identification of circuit can record personnel entering or leaving counted by the counter for addition or subtraction. When someone enters, the counter of this system can go on with counting automatically. When someone leaves, it can automatically reduce count. Finally, through BCD-latch /7-segment decoder / driver LED display, we can see that show counting through the monitor.

Background In general, common metastatic pathways for breast carcinoma include lung, liver, and bone. Described herein is a rare case of breast carcinoma metastasis to the trigeminal nerve. And numb chin syndrome(NCS) has a certain suggestive effect on the recurrence or progression of cancer patients. Case presentation a 54-year-old Chinese female was admitted to our hospital for progressive anaesthesia of the lower left lip and chin. She was diagnosed as breast ductal carcinoma 9 years ago. The brain MRI demonstrated dumbbell-shaped involvement of left trigeminal nerve which extended to left temporal lobe. Then we treated patient with radiotherapy, the patient’s numbness relieved rapidly. Conclusion After review and analysis of the case, we found numb chin syndrome (NCS) is a “red flag” symptom of malignancy.1 When cancer patients develop numb chin syndrome(NCS), we need to be alert to the possibility of distant metastasis. This case also suggests that clinicians should pay attention to the possibility of breast cancer metastasis to the trigeminal nerve.

For the low management of current collective electricity, this paper designs multi-route intelligent electric system, and introduces the soft and the hardware design of the system in detail. The system uses STC enhanced SCM as the control core and communication, based on BL0932B chip, designs single phase bidirectional power electric energy metering module, and uses 485 bus and GSM module as communication and control methods. The actual application shows that the system has high intelligence, reliable operation, achieving the desired effect.

In the manufacturing process of artificial diamond micro powder, if tungsten steel pressure hammer of diamond press makes a tungsten steel hammer pressure crack due to fatigue of workpiece, it is always leading to significant economic losses. The pressure hammer detection and protection device of the diamond press introduced in this paper takes advantage of the voiceprint recognition technology. Firstly, it extracts the characteristic parameters of pressure hammer breaking voice and establishes a sound pressure hammer breaking template library. And then, the paper compares the work field sound characteristic parameters of diamond press and pressure hammer breaking template library. If they are consistent with each other, the work power of diamond press will be cut down. Thus, it implements protection for the rest good pressure hammers.

The laser harp is expensive, not suitable for public use, a light string electric piano has designed by using laser tube and SCM. The feasibility of the scheme is verified in a series of experiments, at the same time,the product has a large market in promoting the teaching instrument and toy design with very broad prospects through the market survey.