149 results about "Limit setting" patented technology

The invention discloses an intelligent dust concentration limit setting spray dust settling device. The device comprises a control unit, a dust concentration sensor, an electromagnetic valve and a sprinkler head, wherein the signal output end of the dust concentration sensor is connected with a signal input end of the control unit; a control signal output end of the control unit is connected with a control signal input end of the electromagnetic valve; and the control unit realizes spray control over the sprinkler head through the switching of the electromagnetic valve. In the device of the invention, the dust concentration limit is manually set; the spraying starts when the dust concentration limit exceeds an upper limit value and stops when the dust concentration limit is less than a lower limit value; and thus the meaningless waste of water resource is prevented, the water logging in roadways is reduced, the working conditions are improved and the health and the safety of mine workers are ensured. In addition, the invention also discloses an intelligent dust concentration limit setting spray dust settling system, so the remote on-line monitoring of the dust concentration can be realized; meanwhile, the invention also discloses an intelligent dust concentration limit setting spray dust settling method.

A vehicle remote entry system is provided which includes a keyless entry module for controlling the actuation of at least one vehicle entry function. A remote entry device for transmitting a wireless signal to the remote keyless entry module for activating the at least one vehicle entry function. A human machine interface for selecting at least one vehicle operating parameter including a signal range limitation setting for defining an operating range of the wireless signal for actuating the at least one vehicle entry function. The human machine interface provides the signal range limitation setting to the remote keyless entry module and a controller determines whether the wireless vehicle entry signal is within the signal range limitation setting for allowing actuation of the at least one vehicle entry function.

A data use limitation setting method is arranged so as to include a data receiving step of receiving from a user terminal device, (A) content data and (B) user authentication data corresponding to the content data; an authentication judging step of judging in accordance with the user authentication data, success or failure of authentication; and a data use limitation setting step of, if the success of the authentication is judged in the judgment, setting on the content data, a data use limitation for limiting use of the content data. With this, it is possible to widely provide as a system for limiting the use of content data, a highly reliable system that is not easily subjected to unauthorized analysis.

When a time average of square values of charge-discharge current Ib (square mean value Sqib) exceeds a predetermined reference value Sqref and when state of charge SOC of a battery is higher than a preset reference level SOCref1, the procedure of the invention corrects a basic input limit Wintmp set according to a battery temperature Tb and the state of charge SOC and sets the corrected basic input limit Wintmp to an effective input limit Win* (steps S140, S180, and S190). When the state of charge SOC is lower than a preset reference level SOCref2, the procedure of the invention corrects a basic output limit Wouttmp set according to the battery temperature Tb and the state of charge SOC and sets the corrected basic output limit Wouttmp to an effective output limit Wout* (steps S200 and S210). This arrangement of the invention more adequately sets the effective input limit Win* and the effective output limit Wout*, compared with a conventional technique of simultaneously correcting the effective input limit and the effective output limit based on the temperature Tb of the battery.

Disclosed is a semiconductor memory device capable of arbitrarily setting an upper limit of the number of error corrections during a test operation. The semiconductor memory device has a counter, a register, and a comparison circuit. The counter counts the number of error corrections. The register, when an upper limit setting signal (in the case shown in FIG. 1, an external upper limit fetch signal) is externally inputted to change the upper limit of the number of error corrections, changes the upper limit. The comparison circuit compares the number of error corrections with the changed upper limit.

Provided is a detecting method of abnormality of a machine tool operation, and the detecting method includes a preparing step S100; a reference waveform obtaining step S200 of measuring a drive voltage and a drive current, while machining the material in a normal state of the machine tool, and obtaining a reference waveform; a monitoring section setting step S300 of setting a monitoring section and thus automatically calculating a maximum load value and a minimum load value; a permissible limit setting step S400 of setting maximum and minimum permissible limits; and a monitoring step S500 of obtaining a machining load generated and determining whether a difference between maximum and minimum load values of the machining load is out of the maximum or minimum permissive limit and then outputting normality or abnormality thereof.

An image communication apparatus comprises an email receiving unit for receiving an email; facsimile-forwarding unit for facsimile-forwarding the email received by the email receiving unit; a forwarding-size-upper-limit setting unit for setting a predetermined forwarding size upper limit; and a facsimile-forward limiting unit for limiting the facsimile-forwarding when the forwarding size to be facsimile-forwarded by the facsimile-forwarding unit exceeds the forwarding size upper limit set by the forwarding-upper-limit-size setting unit.

The invention discloses a dual-loop feedback constant-current source circuit and belongs to the technical field of electronic technology. The dual-loop feedback constant-current source circuit structurally comprises a current-limit setting module (2), a current setting module (3), a current output module (7) and a first feedback module (8). The circuit is characterized by also structurally comprising a reference voltage module (1), a subtractor module (4), a PID control module (5), an adder module (6) and a second feedback module (9). The above circuit is of a dual-loop negative feedback structure. Therefore, the output current of the circuit is high in stability and safety. The circuit can be widely applied in multiple occasions.

A wireless terminal capable of securing the number of station units capable of simultaneous communication with one unit of access point, reducing power consumption, and ensuring stable communication quality. In the wireless terminal (100), an interference determining section (109) determines whether or not an interference wave is at a predetermined level or more on the basis of the RSSI and SNR of the received signals which are calculated by an RSSI (Received Signal Strength Indicator) calculating section (104) and SNR (Signal to Noise Ratio) calculating section (105) and the presence/absence of a demodulation error notified from a demodulation section (108). A number-of-retransmission upper limit setting section (113) sets the upper limit of the number of retransmission smaller than when the interference wave is at the predetermined level or lower if the interference wave is at the predetermined level or more. A WLAN transmitting circuit (115) repeats the transmission of a transmitting signal by the upper limit number of retransmission till the transmission of the transmitting signal is successful.

In an air conditioner for a vehicle, when a target rotation speed of an electric compressor calculated by a target rotation speed calculating means is higher than an upper limit set by an upper limit setting means and a noise level is reduced from a level equal to or higher than a predetermined noise level to a level lower than the predetermined noise level, an inverter controls the compressor to stop for a predetermined period of time and subsequently increase rotation speed to the upper limit. Since the compressor is stopped for the predetermined period of time, the rotation speed of the compressor is controlled without detecting a rotational position of the compressor. Therefore, when the target rotation speed is higher than the upper limit and the noise level is decreased lower than the predetermined noise level, an actual rotation speed of the compressor is immediately decreased.

The invention relates to an oil-cooling compressor, which comprises a main body for compressing the gas of adsorption oil tube with adsorption adjusting valve to pass some gas when the valve is closed; a controller; a discharge valve on the discharge tube at the outlet of main body while the outlet is connected to the main body; a pressure detector for detecting the discharge pressure (P) at one side of gas feeding target near the one-way valve; the discharge pressure (P) is between up limit setting pressure (PH) and low limit setting pressure (PL); the controller can be based on discharge pressure (P) to set the switch state of adsorption adjusting valve and discharge valve, to process A operation control and B operation control. Therefore, it can avoid reducing compression efficiency relative to the load charge, and hold the discharge pressure at hope range.

A method of manufacturing a downhole conduit segment is disclosed. The method includes: extruding a material as a tubular shape to form a body of the conduit segment having an interior bore extending through a length of the segment, the body including an exterior surface and an interior surface defined by the interior bore, the material being an extrudable material sufficient to withstand conditions in a downhole environment; and extruding at least one passageway extending along the length of the body and disposed at least partially between the exterior surface and the interior surface, the at least one passageway having a shape configured to restrict lateral movement of a conductor disposed therein.

A seat belt retractor including a compact brake system configured so that when a drive member of the brake system is inoperative, an operation control member is held in an inoperative position. In this state, rotation stop portions of the operation control member are held in positions opposed to the flat surfaces of an energy-absorbing-member support member, and the energy-absorbing-member support member is braked by the operation control member, whereby the rotation is stopped. When the drive member is activated, the operation control member is moved downward, so that the rotation allowable portion of the operation control member is located on the cylinder of the energy-absorbing-member support member. Then the brake applied to the energy-absorbing-member support member can be released to allow the rotation of the energy-absorbing-member support member.

The present invention improves energy efficiency by reducing the throttling-off loss of the delivery flow rate of a hydraulic pump due to bleed-off control and improves operational performance by enabling control of hydraulic pump delivery pressure according to the control input of an operating lever device. A controller (6) comprises a target pump pressure-setting unit (32) for calculating, on the basis of control input signals from control input detectors (20A, 20B), a target pump delivery pressure, which increases as the control input signals increase, and a pump flow rate upper limit-setting unit (33) for calculating, on the basis of the control input signals, the pump flow rate upper limit, which increases as the control input signals increase. The amount of tilt of the hydraulic pump (2) is controlled on the basis of the target pump delivery pressure calculated by the target pump pressure-setting unit (32), the pump flow rate upper limit calculated by the pump flow rate upper limit-setting unit (33), and the delivery pressure of the hydraulic pump (2) detected by a pressure detector (21).

A lift control apparatus includes a height sensor that outputs a height detection signal after a height of a ground work apparatus is detected. The ground work apparatus is coupled to a traveling work vehicle via a lift mechanism. An upper limit manager sets an upper limit position of the ground work apparatus based on an operation input signal from an input operation device for an upper limit setting USD. A setting prohibitor prohibits, when the upper limit position being set by the operation input signal is lower than the height of the ground work apparatus based on the height detection signal, the setting of the upper limit position from the operation input signal, and setting the upper limit position to the height of the ground work apparatus based on the height detection signal.

A multifunctional LED light modulation interface circuit includes a power supply circuit, a light modulation zone lower limit setting circuit, a filter circuit, a subtracter, a light modulation zone upper limit setting circuit, an amplitude limiter and a weighted addition circuit. The power supply circuit and the filter circuit are connected on the input end of an interface circuit. The power supply circuit supplies DC voltage to a resistance-variable light modulator and the filter circuit filters control signals when pulse-width modulation control signals are input, and the output of the filter circuit is subtracted by voltage of the light modulation zone lower limit setting circuit in the subtracter. After the lowest level is limited, the output of the subtracter and the light modulation zone upper limit setting voltage set the highest level in an amplitude limiting circuit. The weighted addition circuit output weighted linear change and light modulation referential voltage with high and low level limits according to the requirement of a modulated light brightness variation scope. The interface circuit is compatible with a plurality of light modulation control means. The multifunctional LED light modulation interface circuit is low in cost, flexible in light modulation zone setting, and excellent in linearity.

A display device for a work vehicle having a work apparatus operated by an actuator, the device comprising:

• • a flow rate limit setting unit for variably setting a maximum flow rate level of hydraulic oil supplied to and drained from the actuator by operating an operating member; and
  • a display unit for displaying the maximum flow rate level of the hydraulic oil supplied to and drained from the actuator;
  • wherein the hydraulic oil whose flow rate corresponds to a manipulated variable of the operating member is supplied to and drained from the actuator within a range defined by the maximum flow rate level that is set by the flow rate limit setting unit to cause the work apparatus to operate, with an operating member symbol for indicating the operating member being displayed in the display unit; and
  • the maximum flow rate level of the hydraulic oil supplied to and drained from the actuator by operating the operating member is displayed in accordance with the operating member symbol.

A media data switch request receiving unit of a media data reproducing apparatus receives a media data switch request operation from a user. A preference score counting unit counts the preference score voting operations received by a preference score vote receiving unit, and the result is stored in a preference score result storing unit. A preference score limit setting unit sets an upper or lower limit of the preference score. A switch destination media data determining unit determines media data as a switch destination from media data that is being reproduced, based on the result of preference score counting stored in the preference score result storing unit. The determined switch destination media data is output to output unit, using reception of a switch request by the media data switch request receiving unit as a trigger