Abstract: A scanning system and method for controlling an aiming light source (7), comprising: an image sensor (4), which sequentially exposes a pixel array through a rolling shutter to acquire an image of the target, the pixel array includes effective pixels (5) and non-imaging pixels (6), the effective pixels (5) are pixels that are actually used for image decoding, and the non-imaging pixels (6) are pixels that are not actually used for image decoding; an aiming light source (7) for projecting an aiming pattern (8) to aim at a target; a control unit (12) for controlling the image sensor (4) and the aiming light source (7), so that the aiming light source (7) is in turned off state during the exposure time of the effective pixel (5), and the aiming light source (7) is turned on during at least part of the exposure time of the non-imaging pixels (6).

Abstract: A mechanical-model based earthquake-induced landslide hazard assessment method in earthquake-prone mountainous area includes: obtaining the cohesion and internal friction angle through a geological map of the study area and a geotechnical physical parameter; obtaining simulated ground motions by combining a pulse-like ground motion effect model and a pulse-like ground motion response model; calculating slope permanent displacement according to the simulated ground motions, the cohesion, the internal friction angle and other parameters; obtaining a statistical relationship between the permanent displacement and a landslide probability according to permanent displacement data derived from historical earthquake-induced landslides and historical strong earthquake records; and predicting earthquake-induced landslide probability according to the slope permanent displacement and the statistical relationship between the permanent displacement and the landslide probability, and quantitatively evaluating earthquake-ind

Abstract: A mechanical-model based earthquake-induced landslide hazard assessment method in earthquake-prone mountainous area includes: obtaining the cohesion and internal friction angle through a geological map of the study area and a geotechnical physical parameter; obtaining simulated ground motions by combining a pulse-like ground motion effect model and a pulse-like ground motion response model; calculating slope permanent displacement according to the simulated ground motions, the cohesion, the internal friction angle and other parameters; obtaining a statistical relationship between the permanent displacement and a landslide probability according to permanent displacement data derived from historical earthquake-induced landslides and historical strong earthquake records; and predicting earthquake-induced landslide probability according to the slope permanent displacement and the statistical relationship between the permanent displacement and the landslide probability, and quantitatively evaluating earthquake-ind

Abstract: This invention discloses a temperature-measuring scan head, comprising an enclosure, and its use method. There are supplementary lamp, image sensor and temperature sensor embedded on the end surface of the enclosure. The present scan head is as small as the existing scan heads on the market, but it has high-precision temperature sensor with built-in temperature-calibration module that promises temperature information collection and accurate temperature measurement. Technically, the operator should use the scan head to scan the barcode of the objects or living things to be measured, and the scan head will read identity information and conduct temperature measurement. As such, temperature of the objects or living things corresponds to their respective identity, thereby guaranteeing the accuracy of data.

Abstract: This invention discloses a temperature-measuring scan head, comprising an enclosure, and its use method. There are supplementary lamp, image sensor and temperature sensor embedded on the end surface of the enclosure. The present scan head is as small as the existing scan heads on the market, but it has high-precision temperature sensor with built-in temperature-calibration module that promises temperature information collection. and accurate temperature measurement. Technically, the operator should use the scan head to scan the barcode of the objects or living things to be measured, and the scan head will read identity information and conduct temperature measurement. As such, temperature of the objects or living things corresponds to their respective identity, thereby guaranteeing the accuracy of data.

Abstract: The invention discloses a scan head's aiming beam exposure solution system, comprising the control circuit of aiming lamp. The control circuit is composed of 5 pin terminals, wherein pin 1 and 2 are the input terminal of gate circuit, and pin 4 is the output terminal of NOT gate circuit; the high level Vcc is connected with pin 5 of the control circuit, and pin 3 of the control circuit is grounded; the pin 1 and 2 are connected with the scanning signal and the field sync signal respectively, and resistor R1 is connected with the field sync signal and is grounded. The solution system, compared with the existing scan heads on the market, can completely solve the local overexposure problem of the aiming beam, hugely improve the decoding accuracy, stability, identification rate, decoding speed and power consumption of the scan head hugely, and realize cost-effectiveness easily.

Abstract: The invention discloses a scan head's aiming beam exposure solution system, comprising the control circuit of aiming lamp. The control circuit is composed of 5 pin terminals, wherein pin 1 and 2 are the input terminal of gate circuit, and pin 4 is the output terminal of NOT gate circuit; the high level Vcc is connected with pin 5 of the control circuit, and pin 3 of the control circuit is grounded; the pin 1 and 2 are connected with the scanning signal and the field sync signal respectively, and resistor R1 is connected with the field sync signal and is grounded. The solution system, compared with the existing scan heads on the market, can completely solve the local overexposure problem of the aiming beam, hugely improve the decoding accuracy, stability, identification rate, decoding speed and power consumption of the scan head hugely, and realize cost-effectiveness easily.