K-type horizontal inquiry machine screen size and configuration how to choose

1. viewing distance determines the screen size: first establish a judgment baseline

Judgment How big is the K screen?Appropriate, the first basis is the viewing distance. The screen of the horizontal inquiry machine is inclined upward, and the user generally stands or sits close to the operation, which is usually closer than the vertical inquiry machine. In engineering, the "minimum readable distance" is generally used to check: the information displayed on the screen should be readable within the target distance, and the touch hot area should fall within the range of natural finger click.

The QUNMAO engineering team's approach in the prototype verification phase is to fix a set of UI with standard font size and button size, measure the readability and click success rate at seven distance points of 1m, 1.5m, 2m, 3m, 4m, 5m and 6m, and then reverse the size recommendation. This set of "multi-size measured viewing experience" data is the basis of all the comparison tables in this article, not the experience value of the head.

What needs to be reminded is that if the distance is close, the large screen will not be able to be seen clearly: the 85-inch screen is at a distance of 1.5m, and the line of sight is not fully covered. The user must turn his head to see the whole interface, and the touch arm will be suspended. So Size of K-type inquiry machineThe correct answer is always "measure the distance first, then size it". As for the angle of the inclined plane, the height of the screen center and the distance of the anti-touch design, it belongs to the structural level, which can be comparedStructural Design and Ergonomics of K-type Horizontal Inquiry Machine Look at the ergonomic data in together.

2. 32 inches: the main hall of the main inquiry point of the compact main force

Definition:The 32-inch horizontal infrared touch all-in-one QM-C32XJ is the most compact gear in the whole system. The chassis width is moderate and the channel space is small. It is suitable for single-person close-range operation and is also the first choice for projects with limited budget.

Key selling points:Large information carrying capacity, low power consumption, flexible deployment. Multi-level menu and map navigation can be fully unfolded. The power of the whole machine is properly controlled, and power is saved when it is turned on for a long time. Low requirements for installation environment, ordinary halls and corridors can be placed.

Typical scene:Government affairs hall main inquiry, hospital outpatient hall guidance, bank outlets, transportation hub information inquiry.

Form:Floor-type all-in-one machine, inclined surface with anti-misoperation design.

Key configuration:1920 × 1080, brightness above 300cd/m, infrared multi-touch, quad-core A55 platform, 2-4GB memory, 32GB storage.

Price positioning:The unit price is the lowest in the whole system. The cost is mainly in the structural parts and touch modules of the whole system. The panel accounts for a relatively small proportion. It is suitable for budget-sensitive projects with the goal of "usable and sufficient.

In government affairs and hospital scenarios, the 32-inch K machine is often associated withQueuing Machine(Number picking and calling terminal) coordinated deployment, inquiry, number picking and number calling to form a complete moving line; The queuing machine is responsible for queue management, and the K machine is responsible for information inquiry. The screens on both sides are consistent in UI style, and the on-site identification will be much higher.

3. 43 inch: mainstream configuration segment

Definition:The 43-inch horizontal infrared touch all-in-one machine is QM-C43XJ the size segment with the highest proportion of shipments, which is also discussed. Configuration of K-type horizontal inquiry machine The most concentrated gear at the time: the screen size is moderate, and the configuration has plenty of room for upgrades.

Key selling points:Balance readability with footprint. 1920 × 1080 Full HD Starts; The infrared touch scheme supports multi-touch and glove operation. The third-party APK can directly call the touch layer, thus the integrator saves the driver adaptation link.

Typical scene:Government affairs hall auxiliary inquiry, hospital guidance triage, exhibition hall, enterprise lobby, business super shopping guide, catering brand display.

Form:Floor type K machine-based, chassis with beveled table, ultra-thin integrated border, black, white, silver three colors optional.

Key technical parameters (take QUNMAO QM-C43XJ as an example):43-inch IPS panel, resolution 1920 × 1080, viewing angle 89/89/89, contrast 3000:1, brightness ≥ 300CD/m, refresh rate 60Hz, 16.7 million color (8bit), display size 942.2 × 530.4mm,16:9 ratio; Touch control adopts infrared tube alignment scheme, supports multi-touch, adapts to foreign matters such as gloves and pens, has no conductive film layer loss, and does not attenuate after long-term use; the main board is RK3566S quad-core A55, main frequency 2.0GHz,GPU G52-2EE,2GB memory 32GB storage, Android 11; The interface includes HDMI 2.1(4K @ 60Hz input), USB2, 3.5mm audio, 10M/100M adaptive network port, WiFi 2.4G/5G, Bluetooth 4.2, optional 3G/4G module; Built-in dual tweeter, illuminated one-key power switch, time switch machine support, third-party APK installation and multi-language support; the whole machine power ≤ 85W, standby ≤ 1W, working temperature 0-55 ℃, cold-rolled steel plate body with aluminum profile frame, floor-mounted installation.

Price positioning:The mainstream file is the equilibrium point of the whole machine cost. The scheme reuse rate of this size segment is high, the mold is mature, and the batch delivery cycle is relatively stable. It is the "no mistake" option for most projects.

If you hesitate between the K-type and L-type horizontal inquiry machines, the main difference is the chassis structure and the opening and closing maintenance method: the K-type emphasizes the integrated inclined table top, which makes the appearance more complete; The L-type is more leisurely in internal routing and rear opening maintenance. The specific trade-off depends on the project's requirements for maintenance channels, and the logic of size and configuration is common.

4. 49-55 inches: medium and large screen inquiry display

Definition:The 49-inch and 55-inch horizontal infrared touch integrated machines (QM-C49XJ and QM-C55XJ) cover the dual requirements of "inquiry and display": usually play promotional content, switch to the inquiry interface when necessary, and use one machine for both purposes.

Key selling points:Strong visual impact of large pictures; Support 4K video, picture decoding and playback; Infrared multi-touch is also accurate on inclined planes. The screen is of high quality and suitable for lobby, booth and other facade positions.

Typical scene:Enterprise lobby brand display, exhibition interaction, shopping guide in Shangchao Zhongdao, airport and high-speed railway station information inquiry.

Form:Floor-standing all-in-one machine, ultra-thin integrated frame, body structure and 43-inch same platform, easy to mix multiple sizes in the project.

Key configuration:1080P 4K decoding, brightness 300-350cd/m², infrared multi-touch, RK3566S platform, 2-4GB memory, 32-64GB storage.

Price positioning:In the middle and high grade, the cost difference mainly comes from the panel size and structural materials. Display projects are usually more sensitive to the appearance and screen quality of the whole machine, and the appearance process and after-sales terms should be included in the price comparison.

5. 65-85 inch: large screen display type

Definition:More than 65 inches (QM-C65XJ, QM-C75XJ, QM-C85XJ) belong to the large-screen display type K machine, which is mainly displayed and supplemented by inquiry, emphasizing brand image and visual impact.

Key selling points:Large picture, readable from a long distance; The large-size panel has a native high resolution and plays promotional videos with 4K decoding. Infrared multi-touch retains the ability to interact, and both display and interaction are correct.

Typical scene:Enterprise lobby main vision, exhibition hall guide, conference sign-in interaction, wisdom park, museum digital display.

Form:Floor-mounted all-in-one machine, heavy-duty base, ultra-thin integrated frame, customizable color and Logo.

Key configuration:Large screen panel 4K decoding, brightness ≥ 350cd/m and anti-glare processing, infrared multi-touch, 4GB memory, 64GB storage.

Price positioning:High-end gear, the cost of a single machine is significantly higher than the small and medium size, the difference is concentrated in the panel, structural parts and packaging transportation. The 85-inch model also needs to confirm the installation channel in advance: the elevator, door opening size and ground load-bearing may affect the approach plan, which should be included in the plan stage.

The quotation composition and bargaining space of each size gear can be referred. How much is the price of a K-type horizontal inquiry machine? The dismantling.

How to match 6. resolution, brightness and infrared touch scheme

After the screen size is fixed, the rest is the matching of resolution, brightness and touch scheme. These three decisions "whether or not to use" also have a direct impact.Query machine touch configuration The cost structure.

Resolution: 1080P is the baseline, 4K decoding is determined by content

32-55 inch segment, 1920 × 1080 is enough to carry query UI, with the best cost and compatibility. For large-screen display scenes that need to play 4K promotional films, the motherboard is required to support 4K decoding-the RK3566S platform supports 4K video and picture decoding and playing, and HDMI input supports 4K @ 60Hz, which can be used for external playing sources. Large screens above 65 inches are supplied according to the native resolution of the panel, subject to the model specification. Full correspondence logic between screen size and resolution.

Brightness: indoor 300cd/m is a safe baseline

It is recommended that the brightness of indoor K-type machine should not be less than 300cd/m; For the lobby by the window, direct sunlight or highlight, it is recommended to do more than 350cd/m and anti-glare treatment. The 89/89/89/89 viewing angle and 3000:1 contrast ratio of the panel mean that when viewed obliquely, the picture will not turn white or change color when the side passes-this is especially important for horizontal inclined screen, because users often operate at non-positive viewing angle.

Touch: Why does the horizontal machine above 32 inches push infrared

For horizontal inquiry machines above 32 inches, infrared tube touch is a more reasonable choice: cost control in large size, support for multi-touch and foreign body operation such as gloves/pens, no conductive film layer loss, no attenuation in long-term use, and simpler maintenance. This is also the reason why QUNMAO horizontal infrared touch integrated machine is QM-C32XJ to the standard infrared touch of the QM-C85XJ system.

For the horizontal inclined structure, the hand pressing angle changes greatly, the operation posture is not fixed, the infrared "non-contact induction" is not sensitive to the pressing angle, and the false touch rate is lower. When making the decision of "inquiry machine touch configuration", it is recommendedMulti-touch, foreign body adaptability, long-term attenuationAs three hard indicators, instead of just staring at touch accuracy.

7. installation height and slope angle: an ergonomic comparison

What is the height of the screen center?

For standing operation scenarios, the center of the screen is recommended to be in the 125-145cm viewing area, and the top of the inclined screen is not higher than 155cm; When wheelchair users need to be taken into account, adjustable brackets can be selected or the table top of the whole machine can be lowered. Sitting counter scene, the center of the screen is about 100-110cm.

Inclined Angle and Misoperation Prevention

The horizontal bevel angle is usually 30 °-45 °: the larger the angle, the better the perspective, but the arm is more tired; the smaller the angle, the closer to the desktop, but the lower the operating height. The anti-false-touch design includes the edge buffer of the table, the palm placement area, and the anti-false-touch hot area of the software layer.

QUNMAO's ergonomic control data: for an operator with a height of 175cm, when the inclined plane is 35 and the center of the screen is 135cm, the forearm naturally droops and the elbow angle is about 90, which is the combination with the lowest fatigue degree. For every 10cm difference in height, it is suggested that the center of the screen should be adjusted by 4-6cm. The larger the size, the more sensitive the deviation between the angle of the inclined plane and the height of the screen center. For models over 65 inches, it is recommended to use a 1:1 pattern or prototype to verify it on site before placing an order. These values come from the real machine experience of multi-size prototype and are the direct landing of "ergonomic control data.

8. three-gear configuration example: entry/mainstream/high-end

The following table is the three-file reusable configuration recommended by QUNMAO, which can be directly copied into the purchase requirement document as a list to check with suppliers item by item (this is also the landing method of "reusable configuration table"). The memory, storage, touch points and color of each gear can be adjusted according to the project. The high-end gear can be Windows to the system, which is convenient for installing third-party client software.

The differences in the configuration of the third gear are concentrated in three places: first, the size is increased from 32 inches to 85 inches, covering the complete scene from query to display; Second, the memory storage is increased from 2GB/32GB to 4GB/64GB, carrying heavier third-party applications. Third, the brightness and anti-glare of the screen are enhanced step by step to ensure the display effect of highlighting the hall and facade positions.

9. Scenario Selection: Pain Points, Recommended Sizes and Key Configurations

The following is a summary of pain points, recommended sizes, and key configurations by typical deployment scenarios. QUNMAO has accumulated similar requirements in each scenario, and this table can be used as a starting point for requirements review, with specific parameters fine-tuned according to site conditions.

In addition to the 65-85 inch large screen K-machine,Interactive tableIt is another form of choice: multi-person operation at the same time, suitable for children and adults to participate. It has a larger screen and more touch points, but the price and installation complexity are also higher, which is suitable for display projects with sufficient budget.

10. procurement checklists and common misconceptions

Four Common Mistakes

• Myth 1: The bigger the screen, the better.When the distance is not enough, the large screen cannot be seen clearly and the operation is tiring. First measure the viewing distance, then set the size.
• Myth 2: only look at the resolution, ignore the brightness and perspective.In direct sunlight scenes, 1080P with low brightness is basically useless during the day.
• Misunderstanding three: only than the touch accuracy, ignoring the multi-point and foreign body adaptability.On large-size horizontal machines, infrared non-contact sensing is more suitable for multi-posture operation, and the precision figures themselves cannot explain all of it.
• Misunderstanding four: ignore the installation height and slope angle.If the center of the screen is too high or too low, fatigue will be obvious after long-term operation, which is the most frequently reworked item on site.

Purchase checklist (can be printed directly)

• Panel model and rating: IPS/VA, brightness, contrast, viewing angle
• Touch solution: infrared/capacitive, multi-touch, foreign body adaptability, long-term attenuation
• Motherboard and system: CPU, memory, storage, Android version
• Interface list: HDMI/USB/network port/audio/3G4G module
• Boot and time switch machine capabilities: one-key boot, custom timing
• Appearance process: color, Logo, border material
• Installation method and packaging: floor/table, packaging protection, large-size approach channel
• Warranty and spare parts terms: complete machine warranty, touch and screen spare parts response

XI. FAQ

XII. From Prototype Verification to Batch Delivery: QUNMAO's Process and After-sales

Delivery process (plant inspection perspective):QUNMAO's complete machine delivery process is: demand review → scheme configuration → prototype verification (including multi-size measurement and aging test) → batch assembly → factory inspection → logistics delivery. The factory inspection covers incoming material inspection, whole machine aging, touch response sampling inspection, interface and system function inspection. Each machine will be powered on and aged before packaging to minimize the failure rate of on-site unpacking. Integrators and brands are welcome to place orders in batches to inspect the factory. QUNMAO can provide on-site inspection of production lines, inspection records and aging areas.

After-sales maintenance:After-sales according to the project agreement, including the whole machine warranty, spare parts supply, remote diagnosis and on-site support. The QM-C32XJ to QM-C85XJ of the horizontal infrared touch all-in-one machine is designed according to the working environment of 0-55 ℃. The infrared touch has no film loss and is stable for long-term use. It is suggested to specify the response period of spare parts for screen and touch in the maintenance contract to avoid long-term shutdown after on-site failure.

Customization ability:Color (black/white/silver), Logo, pre-installed software, interface and storage can be customized according to the project. If you are not sure about the size and configuration, you can send the scene, viewing distance and budget directly to the QUNMAO engineering team. We will give configuration suggestions first and then enter the quotation process-this is also the continuation of the logic of "first selection, then bargaining" in the landing link.